What's the lamest or most elaborate or most ridiculous excuse that you've ever concocted for have done something or for having failed to do something?

How did it go over? Did people believe it or not? I don’t really have any. I try to go with the truth, or sometimes at least some minimal, least damning or least embarrassing version of it, but I’m not above making something up out of whole cloth, but when I make up an excuse, a lie, I usually think simpler is better, but maybe some of you are more creative than I am.