I guess I'll start with a topic that I love: lizards as pets. I love our furry, feathered and finned friends, but I have found through experience that lizards make unique and pretty amazing pets. I had a green iguana as a teen and loved him dearly. Unfortunately I was pretty irresponsible back then (to say the least) and Gaby suffered. I had to have him put down at only 4 years old due to MBD (metabolic bone disease) - I did not take enough care with him. I did not give him the amount of calcium or UV lighting that he required to be as healthy as he could. He was a fantastic pet and believe it or not - he loved eating pizza and mac n' cheese. I cried like a little baby when he had to go. We buried him in the backyard surrounded by flowers. May he rest in peace.
I was lucky that a friend at work happened to be looking to sell hers. Her kids liked them, but did not want to actually clean up after or feed them, so she was looking for a home for the girls. You can see them above at feeding time - Citrus is the one eating, Vexus is the one looking to eat. I gladly took them in, not knowing at the time that they were still juveniles, which is why they were perfectly happy to share a cage. Imagine my surprise a few months later when they finally hit adulthood and decided that they loathed each other. This may sound mean, but it was so funny when they got angry and chased each other around! We never let them hurt each other, and they have been kept in separate enclosures since then.
But you may be asking: do they do anything? Don't they just lie around their tank all day waiting to be fed and then lie around some more? I guess some lizards do. We also have a gecko. She cannot stand to be handled. She's a gorgeous little thing, but we adopted her when she was already 10 years old and her previous owner did not handle her. It's too late now. I try with her, but she's not impressed. So yeah, many lizards don't want to be touched, some can't be for safety reasons, but many can be held and played with and enjoyed. Some species, like the gecko and iguana, can be safely handled from the time they're small and they will learn to be OK with it. Some species, like beardies, crave love and affection.
Having a beardie may sound like all fun and games, but there is a serious side I'd like to mention, in case you're thinking about a dragon for yourself. Lizards, all desert-dwelling creatures in fact, require specialized care. Sticking them in a cage and feeding them whatever is at hand is not going to cut it. Our girls have specialized lighting and large enclosures with basking spots and hiding spots and things to climb on, even though they don't like to hang out there much. Thankfully CFL lighting has been introduced, so that your pet can get the correct UV and heat requirements, while you can save a few bucks. Think 20w versus 75w 18 hours a day. My electric bill thanks me. They are also omnivores, which means they need a good mix of fruits and veggies, as well as insects. A few lizards are happy eating the freeze-dried ones available at pet stores, but mine will only eat them if they're moving. This can get rather expensive, because you have to give them a varied diet consisting of crickets, mealworms, superworms, waxworms, butterworms, silkworms and hornworms. Most of these are high in fat, but make excellent treats. Mine are crazy for hornworms in particular. When I pull one out for them, they actually hurl themselves out of the tank to get to them. Citrus is especially good at catching it mid-flight. They're so funny to watch while eating. They absolutely must have their calcium supplements at the least and a good multivitamin will keep them healthy. Balance is key - do not give them too much of either. Beardies also need baths so that they can soak up water, they generally won't drink from a bowl, although I have heard of a few who will.
Other beardie behaviors to make note of are the head bobbing, which is hilarious, and the waving, which is the cutest thing ever. Our beardies only head bob at each other, never at us, and they're just trying to assert dominance over each other. Since we keep them apart, there's no danger, but head bobbing usually precedes one trying to jump on the other for a ninja attack frenzy. Since ours were almost adults when we got them, we did not have the pleasure of seeing the arm waving first hand. I have seen videos, and it's one of the cutest things I've ever seen. Juvenile beardies seem to wave to each other to let each other know "hey! I'm here, I'm like you!". It's quite amazing and I wish mine did that. Google 'beardie waving' and a bunch of great videos can be found.