My 2 are over 1 year and this habit is still going on...
 
I hate it!  I have tried everything and nothing works...Although, I do have to admit that it is kinda is less and less eating it.  Only b/c I make sure that I do get the morning and night poops before they do.  So, they are only left with what they do during the day, and lately, I have been coming home and the poop during the day only looks 'sampled'. 
I wish there was something out there that would definatly stop this. 
I am planning on trying the 'coins in the can'.  Roxy and TJ will bark and beg now for food.  I shook the coins in the can at them for barking and begging and they stopped.  They are TERRIFIED of the coins in the can.  So, I think I will try to catch them eatting poop and then shake the can at them, MAYBE that will work?????   
