Just Spilled My Drink On My Boss...

Tonight was rough, and not for the reason you'd think. Bartending is usually my escape, but tonight had a twist, I spilled my drink all over my boss's shirt! And guess what? He laughed it off like nothing happened, saying 'It happens.' But secretly, I felt like an idiot. Then he asked if I wanted to go for drinks after work... Was he being nice or just pitying me? Either way, I said yes and am now dreading the awkward chat ahead. What do you say when your boss's shirt is all over the place because of your clumsiness?