My main question is, knowing you are supposed to plug the adaptor straight into a wall socket instead of a power board, what would happen if you plugged your adaptor into an extension power lead and plugged that into the wall socket. The main issue I have with these adaptors is that they are too wide for both wall sockets to be used.  

I plugged my adaptor in front of a power board and the powerboard randomly tripped. The fact that the circuit wasn't tripped on the box outside leads me to conclude that it had nothing to do with the adaptor and must be the powerboard itself or something on the powerboard that surged. Is there any link people can see here, is it just a massive coincidence that this happened within 24hrs of my putting in the power link adaptor?