Wow, that's not funny. Serious dude, if the dog fell over, the dirt might have gotten in his mouth and the bacteria in the dirt would "eat his tentacles" and soon he would have to take a dump becoming sick. After becoming sick, a giant worm would come out the dog's body causing a allergic reaction to the grass and killing it. The grass would becoming yellow and brown. Then the sick dog with a giant hole in his stomach would eat the grass and get more sick. Then he would becoming yellow and brown from the grass and a new ugly species of dogs would start. Seriously dude, dogs falling over is not a joke, seriously man...
Wow, seriously dude, that's not funny. If he grew his leg back, the leg would make him able to run twice as fast but it would make him lick his new leg making his new leg wet. The hair from the wet leg would jump off and he would be hairless on his leg. The hair would grab hold of a human's leg and cause lice on the leg so it would look like a giant banana leg. The giant banana leg would make monkeys from all over the world eat the human's leg. Then the human would have 3 legs. Seriously dude, that's really not cool. Now the human will have 3 legs... smh...