She had her first tantrum when her parents explained the new house rules. Steve realized this was because Bryn had never had boundaries set for her before and was rebelling from the shock.
But Lisa thought it was Jo's fault Bryn acted out (because "she never acts this way"), and refused to put Bryn in timeout as a result. In teaching, Part 2, Steve put Brynleigh on the naughty bench for 2 minutes.
She was 2 years old at the time and is now 12 years old in 2017.