Power boards on plasma tv s can shock you.

I was sorting all my electric board the other night and i put 2 power boards from the same plasma unit in the a box together. I believe the bottom of each boards were against each other. When i picked up the box there was a BRIGHT white flash and i yelled like a little girl and dropped it on my foot! For sure i thought the boards had been out of the TV for at least 2 weeks...maybe more. This was the first time i have ever had a LIVE electrical experience before since i am usually very cautious, until now apparently. I guess i should invest in some static proof bags!?!