Fixed a coolant pump on a lathe, needed, fuses, new contactor/overload, new cable and re-wound the motor, basically everything was fubbared. About a month later the lathe operator called me over when i was doing another job and said that coolant pump you fixed has stopped working. Thought oh sod it , so went over and sure enough just a dribble coming out, thought it might be down a phase so checked it very quickly and thought this is odd. So for some reason i disconnected the outlet pipe and asked the operator to start and quickly stop the pump whilst i was holding the pipe. Well a colomn of cutting oil flew up 10ft in the air and landed directly on my head, drenching me, big time. Operator had to stop work as his stomach was hurting and i disappeared off to the toilets to get cleaned up. Big laughs all round, the friggin pipe was blocked, unblocked it and all was good.
Phew - that stuff really stank. :-(