"This?", MK tilts his head, lifting his arm that was wrapped tight in a cast after you had asked about it, "Oh, yeah, it's a long story! I was actually, uhm....skateboarding! Yeah...because, uh...I've started doing that now, I guess...and I saw this, uh...oh! A butterfly! And it was, like, so pretty - you wouldn't believe how pretty it was, honestly it was so beautiful. Anyway. So, I saw this bird- i- I mean, butterfly, and fell off my skateboard. So, yeah, that's the totally legit reason as to how I broke my arm!".

You could easily tell that MK was lying. This is the third different story he has told you on how he broke his arm. He refuses to tell you the truth and it is frustrating you at this point.