Chris: one day you were on your period and your were on his bed. When you got up the bed had a blood stain.
(I will die if that happens bro)
Richard: you fell on a dance rehearsal he had accompanied you to
Joel: you were eating together and there was spinach on your teeth
Erick: your mom was showing pictures of you when your were little
Zabdiel: you sneezed exactly when you two were about to kiss at least there weren't boogers involved.