I would never microwave chicken. That is just nasty. dutch mentioned cleaning chicken coops as a kid. I have to agree, the chicken is the nastiest, filthiest animal around... hogs and pigs are much cleaner.
I have a bbq chicken recipe I got from a neighbor in North Carolina that calls for simmering grilled chicken in a pot of bbq sauce for 15 or 20 minutes, on low heat. It's excellent.