You’re starting to assert your will and test your boundaries more now.
Lots of times when mommy or daddy say no do something, you smile and try it again. This usually results in a swat on the bottom or a hand smack, to which you always act so surprised.
You were being particularly difficult one night and Mommy put you in timeout (on the first stair). Mommy put you in timeout for 1 and a half minutes, when you started to get up, mommy would put you back down and repeat until you stayed. I guess now you’ll know what Hannah’s doing when she’s sitting at the bottom of the stairs.