Alright, I'm not trying to bite your head off, but come on Northridge. You are obviously smart enough to use a computer, so it makes logical sense that you should be able to think of using monkey bars to do pull ups. If there are no parks near your house then use a tree branch, a door frame, a ceiling rafter, a two-by-four placed between tree branches, a thick rope tied between building, etc. You get my point, I'm sure you can find something.
Also, if your having trouble with pull ups, I would suggest do some rock climbing. If thats not possible where you live then just climb a tree or a jungle gym. The point is, climbing is a lot more fun than pull ups and it works some of the same muscles. That is not to say that climbing is a substitute to a daily pull up routine. It's merely an enjoyable supplement.
Good luck with it though.
Oh, and by the way, when you put your name at the bottom of your post you shouldn't put "Rct" Northridge. You are not a recruit until your boots hit the yellow footprints. Guys like us, in the DEP, are called poolies or DEPers.
-David Cornell
Most people see life as little more than the interlude between nothingness and eternity