Mine can! I fail to see what's so funny here! I have a medical condition & I have to go to the bathroom all thru the night. My dogs certainly know because they wake up just as I do! OP, don't let the immature people get to you! I think it's a very valid & serious question! It's certainly smarter than 98% of the questions I see posted here! If you don't mind, I'm going to follow you & I'm picky about whom I follow! you can follow me or not, it's up to you!