Because you never know when you bend over to put your son on the ground when your pants are just going to explode off of you...
Yes, this happened at church this morning.
And, no, I don't keep an extra pair of pants on me...so the I had to "sneak" out of there before I revealed more than I needed to...to more people than I already did.
And, I have NO IDEA why this happened...they weren't tight on me?
Geesh, how embarrassing!