"Don't touch the wall. I just painted it."
"Don't touch the wall." In a monotone voice.
"Don't touch the wall." In a sing song voice.
"Don't touch the wall." In a firm parent voice.
If you touch that wall, your butt is grounded."In the ultimate threatening voice.
Child #3 (who is only 5 years old) replies, "So my butt will be the only part grounded?" Followed by giggles.
What a smart ass!