As I peer down at her cotton-puff head, my sense of guilt sets in. Peeps, my bichon frise associate, has just taken a cocktail of three different medicines meant to keep her ticker ticking. Her eyes water, and her mouth turns downward, quivering slightly. It's obvious she is not digging this new regimen. At 13, this lady has lived long enough to endure an onslaught of insults to her pot-bellied little being - epilepsy, cataracts, a successful surgery to rid her of cancer and, most recently, congestive heart failure.