Funniest experience ever

I feel like this is the only "appropriate" place to share this. 
So my fiancé was treating me so to speak. He looks up and I see blood on his chin
My period wasn't due for another week ... He worked it out by my expression. We just laughed. I am so lucky to have him, he just cleaned up and gave me hugs telling me it's okay.  
Has this ever happened to someone?