apathetic 7 yr old deficating in pants

My son's 5 yr. old friend, "T", just had this issue and he was brought to the doctor because no one could understand why he was doing this. It sounds like the same control issue, apathetic to punishment, and little remorse or admission of responsibility. Everytime "T's" parents got ready for the day to go anywhere, sure enough, "T" pooped in his pants and they had to stop everything, get out of the car, clean him, bathe him, etc. They were at their wits end!The behavioral specialist finally told "T's" parents that this is a control issue for negative gratification. Namely, he wants to inconvenience you and everyone else in order to get that sole attention completely on HIM. Nothing more. Once you ignore the defecation, and make him walk a mile in it, he will cease. Don't stop your day. Don't give him a change of clothes if you are on your way to the grocery. Explain to him that it is too bad...but errands are important and it is important that you get your stuff done without delay.I personally felt horrible thinking about my son (if he had this problem) having to "walk a mile in it" -- but after I thought about it, how else is he going to learn? If it is uncomfortable for everyone else (when he does this) but not truly UNCOMFORTABLE for him, how will he ever learn it is something he can live without? This, of course, after you have ruled out the fear of the toilet and/or a possible medical issue...good luck!!!!!