I try to take him before, he usually pees outside the store as well. He's picked up a "marking" behavior I think from my families Lab, he pees on everything. Now I can't get him to stop. Luckily it wasnt carpet but it was a crowded dog party event and I was totally embarrased that he was the only one that had an accident. I guess I should just walk him for longer outside the store?
I wish I could train him out of marking things, hes neutered and everything but just loves to claim things as his own