Once, after going inside to change into dry clothes-after getting drenched by my sister's boyfriend who had come over so they could wash their cars together-I came back down the hall to find my sister and her boyfriend had also run inside and were making out in the entry way.

I coughed to let them know I was there. Turns out they thought I was still outside. They were more embarrassed than I was.

But that's the worst of it.