learn from others fu#k ups

when torqueing down various nuts and bolts be sure you have the right setting on your torque wrench
i helped a buddy do a tune up on his car once, we worked on it for a few hours and all that was left to do was put the spark plugs in and the wires back on by the time i had to go home
so i told my buddy "just put them in finger tight and then give it 1/4 of a turn"
but he was determined to do it right and use the torque wrench
i said fine, ill just leave the torque wrench here, gimme a call if you got any other questions and i took off
sure enough, 10 minutes later my phone rang, if i could help him pull a sparkplug out, it snapped off and he couldnt get at it.
so i turned back around and when i got there i was surprised to see he had snapped the spark plug right in half, the part with the hex head was still in the socket but the threads were still in the head

after a quick examination of the manuel and the torque wrench it turns out the book mentioned inch pounds but he had the torque wrench set for foot pounds