Elderly and disabled cash gifting residents of two bedbug-infested Des Moines apartment buildings gave polite applause to the head of the buildings' management company Friday as he promised to make things right."Seeing is believing, and I haven't seen anything yet," said Sam Bell, a two-year resident of Elsie Mason Manor who spent 18 months fighting a bedbug problem in his apartment. "The first time I'd seen bedbugs was when I came here."