I think the most embarrassing one would have to be when the button busts off the front of your pants.
It's embarrassing when that button goes.
You weren't running or climbing a fence.
You were just sitting there, watching TV, and your pants exploded.
Those moments are tough because it's at those times that you realize how fat you've become.
Like, the other day I was heading to the kitchen, and as I passed the bathroom I just happened to glance in the mirror.