That's what I always say. At 250lbs+ (I'm being generous, here), exercise shouldn't even be an option; gyms shouldn't even bother taking you in, on health/insurance grounds, alone. Sure, do some push ups at home, squat, and go for a walk. But you have no business lifting weights until you're at least within the range of human sizes. Lurking fatties, take note: you cannot out-train a bad diet. Not at your level. I can do some heavy power-lifting, for two hours; then go for a hard, hour-long, swim— then go out for a big ol' platter of wings and not give a fuck (especially during a bulk). You? You need to sew your mouth shut and just stop eating. That's it.