What is the most expensive DOH, you've ever broken where it's completely because you were acting stupid?

For me I was web chatting with this girl and I had my BB gun trying to look like a bad a**, I went to point it at her (my 52 inch flat screen, it was loaded) and I accidentally fired, the rest is history. I couldn't have felt more stupid in my entire life, coupled with the fact this girl just watched this go down live.