If you go to Las Vegas never gamble more than you can afford to lose, and if you win a big jackpot early on then turn 1/2 into a money order and mail it home - so you can actually prove that you won.
If you borrow, never GAMBLE that you'll stay employed long enough to pay the loan... have collareral or at least a big fat load of jewelry you can pawn or sell if something goes wrong.
Do you have ANY savings? Even enough to cover getting a really serious case of the flu that keeps you home and wipes out 2 or 3 paychecks? If not, you really shouldn't borrow for anything - well if my sister needed a kidney I'd break that rule.
Fund your 401K or simple.IRA before you even think about getting another trailer, and NEVER borrow against it.
Might sound preachy, but I know too many people who are hopelessly in debt.
Today is a gift, that's why they call it the present.