Don't touch the nice exhaust tips that stick out the back of the car while you're breaking in the camshaft at 2500 rpm just to see if they get hot..

Don't attempt to check the electric fan on a friend's camaro while the engine is running...

the entrance of a cooler liquid(water) into a overheated radiator/engine of an DemoDerby vehicle usually administers a scalding shower to the unsuspecting person(s)and emits an loud audible knock from within the bowels of the heated beast...

If your trying to impress your girlfriend,
make sure that your stronger than the 8 3/4 chunk that your trying to install by yourself...

lastly,when installing the toyota 5spd trans in by yourself because it's nothing compared to an 833,make sure you don't fill it up with lube first,get stuck with it on your chest under the car and accidentally kick and thrash the plug that you had on the end of the trans or you may end up with 90 weight underwear and jeans...