Wildlife Removal - Raccoon kit in laundry basket

This appeared to be a standard raccoon situation that I've dealt with countless times. However, the only thing predictable about wildlife is their unpredictability. I set a positive set trap over the opening and expected the mother, who generally leaves the den at night to forage for her kits, to soon be caught within a day. Positive sets are traps that are placed over or in front of an entrance hole, and barricaded to funnel the invading animal. Wildlife technicians particularly like using positive sets because they catch only the target animals existing the hole that's covered, and other "innocent" animals can't accidentally find themselves trapped.