I have a 9 month old Lab/Shepherd who won’t stop eating tissue paper/toilet paper/paper towels. We keep our main trash can under the sink but the bathroom and bed room trash cans we keep on the floor. 90% of the time we keep the doors closed because we know he'll come running out with some if we don't. I'm really scared because when we clean the house some of the paper towels have chemicals like pledge, glass cleaner, and 409 on them. I turn around for a second and he's chomping down on them. I grab it from his mouth and say NO, give him a toy and say good boy! and throw the paper towel out. I figure after awhile of doing this he would be like.. OK this = sad, toy = YAY! Nope he will grab tissue paper and eat it. I'm thinking about getting a zap collar that vibrates when he miss behaves. Any thoughts or ideas?. Thanks!