Trained dogs do not.
I'm a nobody so read Rush's comments on this issue - he discussed it on his show today. He takes his dog on his private plane all the time. Rush's dog has never dropped a deuce in EIB 1.
I think it's a training issue (on the part of BarryO, or whomever is training the dog). My own dogs either clawed through the mosquito net trying to wake me in the morning, or went up to the front door and started barking when they needed to do their business. They never dropped a deuce inside the house (after the first time as small puppies).
What's newsworthy is that Obama cannot take care of a dog, the easiest animal in the world to train and he expects to take care of the entire US economy which is a lot trickier.
I guess you're not a dog person. Obama is characterized by his adoring fans for his charisma and caring. Rush and others have pointed out that he is cold and calculating. Lowly Altair, who has only aspired to do the finest engineering I can have always been characterized as being cold and a word I don't want to write on this forum. My dogs learned very quickly that the last thing in the world they wanted to do was something I didn't want them to do. (I tell Mrs. Altair that I speak "Dog").
If the 1st Dog is casually dropping deuces on Airforce 1, he's also doing it in the White House. It is the perfect metaphor for this administration - like doggie, liek master. Watch your step! in Obama's America.
That would help alot in a plane. ;)