while I was out of town. I have three kids who live at home, but I'm recently divorced and my 18 year old doesn't stay with his dad when I'm gone like the younger two teens do (he's a really responsible kid who has earned scholarships to college, is a leader in school, gets all A's, etc.). So I trust him.

However, he has asked me before if he could have a few friends over to drink in the basement and I've consistently said "no" and he seemed to accept my final word on it all year... until this past weekend. The hints of evidence are everywhere - the way he cleaned up the basement, footprints on a futon we store down stairs, a new spill on the carpet, plastic cups and a girl's silver purse, left over chips in bags, and so on. I don't see evidence of alcohol, but it's possible his friends would have brought it in.

Even without drinking, using my house for a party when I'm out of the country is not okay. How do I go about bringing this up with him and what are appropriate consequences? He's a really good kid, but I have a hunch that with college so nearby, he's feeling pretty free and in control of his destiny. I want to have a peaceful, trusting summer. Ideas?