Hi, I have a five month old puppy that keeps scratching on the door to go out like every twenty minutes to half hour. I feel I have to reward him and take him out and he will usually piddle something out and I take him back in..Not fifteen minutes to half hour later he's scratching to go out again..Sometimes he'll do a poo or sometimes will meter out a little dribble of urine and we'll go back inside. If he doesn't do anything then I put him in his crate. I don't think he gets the idea that if he signals to go outside and he doesn't do anything then he goes in the crate but if he does he gets a treat. He's constantly scratching on the door to go out. It's like as soon as he feels any urine in his bladder he wants to go outside to pee..The other thing is he will do this just to go outside to smell the air or look for birds..We stay in one place so he knows that it's just outside to do business..It's such a constant thing that sometimes I'm out three times in an hour! I think one of the problems is that when I first started training him (I got him two months ago) he would pee on the floor so I would get him outside to finish and take him very often so he would get the hang of it..Now he doesn't make a mistake indoors but won't hold it for a few hours..I don't keep him in his crate when I'm home only if I need to be on the computer or if I can't keep an eye on him..He does stay in his crate when I run errands..but other than that he's out..Should I ignore him if I'm pretty sure he doesn't have to go bad and make him hold it? He starts to chew on the doorknob if I ignore him too much..I try to distract him with a toy but he will come right back to scratch to go out..Please help me with this as I'm extremely frustrated. Thanks so much.