Funny!

So we're driving to church and Ben says, "Hey Daddy, member (he leaves off r's) when I swallowed my dum?"
Jason, "No. When?"
Ben "Member, I got dum out of your truck and ate it but then swallowed it."
Jason, "Oh yeah. Why?"
Ben "I was just membering."
Jason "Why did you swallow it? Did you want to blow bubbles out of your butt?"
Long Pause
Pause, I look at Ben and he has this very thoughtful look on his face and then says,
"NO!"
Jason, "Then why did you swallow it?"
Ben, "I don't know why."
Jason, "Who?"
Ben, "What?"
Jason, "Why?"
Ben, "Why what?"
And so it went on!