BUTT PLUG GONE WRONG TMI

You guyyyyssss! I saw a post about a girl wearing a butt plug on a date with her boyfriend. I thought it was hot so we decided to do it tonight while we went on a nice date. this was my first time keeping it in this long. I farted while at dinner and it felt weird but I didn't think anything of it. So we got home and he pushed me down to take it out and were going to have sex but he pulled it out and there was shit on it! like it wasn't just shit. I'm not sure if it was also congealed lube or WHAT but ewwwww. It was gross but he was really cool about it because he knows shit happens (hahahaha get it) but I'm so embarrassed ahhhh. anyone else have any tips so this doesn't happen next time?