A former waitress at a Brockton strip club who says she was tired of being mistreated by men allegedly mailed explosive packages to Bridgewater State College, strip clubs, a motorcycle gang, Fox 25, and KISS 108 radio station, according to court documents unsealed yesterday. Kimberly Lynn Dasilva, 40, of Hull, who hosts sex toy parties and sells adult gift baskets from an Internet site, was arrested Friday night after FBI agents and State Police raided her home and found letters hidden in the ceiling tiles of her bedroom that allegedly linked her to the mailings last September.