Those of you with kids probably already learned this lesson. Those of you without will be one step ahead.
As parents of a small child, we are continually trying to teach Grace how to recognize and express her emotions, if anything to prevent screaming meltdown tantrums. Last night I was assisting Grace on the post-dinner/pre-bath potty time. Upon finishing, I praised her enormous poops (yes, that's what you do with a 3-year old) and proceeded to flush them away. Now realize that this is my child that rarely remembers to flush, and often when I remind her comes back with a "you do it, mommy". But of course last night the minute my fingers depress the handle, I get a "Mommy, I want to flush!". After explaining how sorry I was that I'd already done it, I now have a 3-year old bursting into tears proclaiming over and over "I want to flush". So she decides to get back on the seat right then to do more poops so she can flush it. Her body is not obliging (though she does get a little more pee out), so she continues to sit up there crying about how she is going to flush. Finally I ask her "Grace, why are you crying? Are you angry that Mommy flushed your poops?". Ah, she now has her word to attach to the situation. "Yes, I'm angry with you Mommy." As she sits up there for what seems like forever trying to poop (probably more like 5-10 minutes), we talk about her favorite tv show, about what toys we're going to play with in the bathtub, about what she'll do at Miss Jackie's class the next day. But out of the blue multiple times she keeps popping up with tearing eyes and a "Mommy, I'm still angry with you."
Lesson learned: NEVER flush without first asking.