Is it legal to permanently mike a 3 year old?

This kid is hysterical and there is no way I am ever going to remember everything she says to let her know just how funny she was at this age. I've told a lot of people about this already, so if you've already heard this story...sorry. I was giving Sabrina a bath a couple of weeks ago-getting her ready for bed. My husband wasn't home, and my nerves were a little frazzled with getting 2 kids ready for bed without his help. I know there are plenty of women out there who do this out of desire and/or necessity, but I will freely admit I want the extra set of hands in my house and appreciate them so much more when they are not there. Single moms (whether they are really single or not because I know there are a lot of married "single" moms out there) are my heroes. Anyway, I asked Sabrina not to play with the bathroom cabinet. I asked nicely and said please. She did not listen...shocker...and said, "But, mom" and continued to play with the door and I snapped back at her before she could finish her sentence, "CAN YOU PLEASE JUST DO WHAT YOU'RE TOLD WHEN YOU'RE TOLD TO DO IT!?!?" She hangs her head with such disappointment in me on her face (can you blame her?) and says, "This is an angry house." All I could do was laugh hysterically. How do you not at something like that???? If she figures out that comedy is my kryptonite I am done for. Yesterday, she says, "Mom, my stomach hurts." I say, "Why does your stomach hurt?" She says, "I don't know. It just happens when you're old." WHAT???? Seriously-she's a riot.