Apr 1 Option Trades Update

Someone must be playing a joke on me on April Fools Day. Trades were executed when I closed the pop up window after checking for the margins on the OSE N225 May 9250 puts during the evening trading session(started last Sep). I called up IB to check on the erroneous trades but they did not notice anything unusual & deemed the trades valid. (4 contracts at 10 pts). I am not sure if it was my mouse or I clicked the wrong button on the screen but this is indeed a bad experience. The only change recently is that the TWS software is the lastest version. This is a first for me.