When someone tells you to stick your hand into moving machinery and is not willing to do so themself, do not trust them.
When merging onto an expressway from a stop sign, look in front of you before you press the gas pedal to the floor, not after. Even if the car in front of you started to move and had plenty of time…
Never send a note to one of your girlfriend’s best friends indicating that you might possibly have made a mistake when you hooked up with your GF, and that you’d rather be with her (the friend) instead. They WILL talk about it.
Do not, in the presence of any female, when the conversation is getting loud, say the words "I used to be . . . " followed by any word that could conceivably be misheard or misinterpreted to mean “fat”.
When the boss is approaching your desk and you frantically press alt-tab to get a screen that looks like you’re working, it’s perfectly obvious to everyone what you’re doing.
The words “I’ll do you a copy of that photo you really like, i promise” are always lies, damn lies.
When your trying to get the grill going, and it’s not, and your “friends” say “maybe if you put more lighter fluid on it, it’ll start”…well don’t pour the lighter fluid on.