Did you mean injured? If you did, take him/her to the vet of course!
No I don't think you can because the flip flop is very light and not hard so when you hit it against the dogs leg it will not hurt. The dogs leg is hard and sturdy.
Im sure you mean why do boy dogs lift a leg and girl dogs don't. Well, the answer would be because if boy dogs tried to "go" without lifting their leg up they would just end up peeing on their leg. and somehow they know that they dont want that.
BITE THE DOGS LEG OFF
Very strong 030
18 inches
if loads of boy dogs are following it looking something ;]
Generally limping.
they act friendly by pising and shtting on your leg
It varies. Usually right front leg then right hind leg at the same time left front leg then left hind leg.
a dog has a eye and a leg and a head and a ear and a hairy bum
If your dog is a herding dog, it might be because of that. Herding dogs have behavior of biting sheep on the leg. If your dog is not a herding dog, it might just be playing.
maybe it has an injury or a sore or it could be infected