My pups never had much of a problem in house training but now after two months they are revolting. Or atleast one of them is. I think it is Trevor. OMG so frustrating. Some one has been peeing on the little rug in the kitchen(the only room they are allowed in) but then today i let them out as soon as i got home, 2:00 i left them outside for 10 min while i changed (they have electric fence) but then i went out agian with them around 4 and spent 1 hour outside playing with them. I took them back out at 6 seperatly for about 15 min each. after about 30 min, i went in the kitchen and there was pee all over the floor and trevor looked really guilty and sorry. as soon as i went in the kitchen he ran to the crate when i called him out he was really low to the ground liek he thought he was going to get hit, which i dont do. then i let them bot out at 8 again. then again at 9:45. at 10:30 i went in and there was poop all over the floor. this has never happened before and i cant punish them because i dont catch them in the act and i am not certain i know who it is. i heard this happens aroung the 6-9 month age. is this correct? what should i do?