So, recently, since little beans started crawling, I've been practicing "no" when she ventures near something she shouldn't be near. I say a "no!" and clap my hands; not in a loud or aggressive way or anything. She usually just turns around and looks at me and smiles, which is enough to distract her to crawling somewhere else.
The goal is to just get her used to the word at this point.
Anyway, she was crawling toward the airwick dealy plugged into the wall, so I did my no thing, she looked at me, then started back toward it again. This time my husband chimed in and no'd her as well.
Apparently this was too much for Evie, because she gave us both a startled look and burst into tears! I felt soooo horrible, I didn't mean to scare her! She recovered after a quick snuggled, but geez. Guilt much!