That happened to me last year with a 2 1/2 year old boy who arrived in underwear one Monday morning and his Mom made the same announcement. I had the pullup out of the bag before the Mom was out the door and reminded her about my contract rules. They let him go without underwear all the time at home then tell me stories how he pees and poops himself at the grocery store and other similar places. Here we are about 8 months later and he's doing very well with toilet training but he's not going without containment here - I'd be cleaning up urine off my carpet and couch daily. No thanks!