ever tried to connect paper capacitors between two phases in 380v ?
They make a nice bang.
But really the capacitors I was really worried about were the 1 farad monsters at the bottom of the Power unit racks when we had to actually put the 48v power on the rack...without the load resistors... it was all in the wirst movement to keep the fusein the huge fuse holder far enough to form an arc and spread it so that it didn't degrade the contacts until the humongeous capacitors at the bottom were charged enough not to explode.