Only from a firstborn...
Often, when the kids all go downstairs to play or watch a video, I'll say to Corene, "Can you keep an eye on Isaac while you're down there?"
(She's actually very responsible in this job, she takes the role very seriously. If Isaac is getting into something, it's a millisecond before I hear her correcting him and redirecting him... and usually, she does it gently, and he responds well. Aaaahh, this is one reason why I maintain that having 3 children is easier than having one child.)
(Behind the usually, of course, there are the times when this doesn't work so well, and I have to come intervene when Isaac is SCREAMING and Corene is "helping".)
Anyway... yesterday I came downstairs and sat on the floor where the kids were playing, and Corene walked up to me and said,
"Mommy, can you keep an eye on Isaac for me for a second while I go potty?"