I would just like to add that Poppy fake pee's too.
And I know she does because I've seen her do it lots of times.
I actually think she is doing it for a treat, because I am training her to go outside she gets a treat when she potty's outside.
So a few times she has squated and fake peed then ran up to me and waited for a treat... I go over to the place were she squated and it's bone dry.

So now I make sure I check before she gets a treat and she dosn't do it as much.