You know roughly the size of the Chevy van. I came out of my house one morning to go to work and a bull moose was standing between my front door and the van. He was taller than the van and his rack was wider. The velvet was hanging off the right antler all the way to the ground. He pawed the ground and snorted, a cubic yard of steam in the cool air, so I went back inside. It was bow season and I had my bow and permit, but that was just too much meat even considering the convenience of the van right there. I waited a couple minutes and went back outside and he had gone so I went to work.
Well, I'll have you know that here in Phoenix, I have a Gecko inside my house! I've seen him in the kitchen and the bathroom but I can't catch him - it just occurred to me that there could be two of them! I know they eat crickets, but still.
This is my dragon (probably 8 inches long):