Imagine your thought process:
"ok, so i've got to tee the ball up in the teeing area- oh sh**, there are some branches there.. I always hit a massive slice to i like to tee it up on the right of the teebox... grr, if only i could break off that branch, i could tee up exactly where i want to.... well i know i can't, but there is only a little bit of that branch overhanging, just a couple of leaves... i'll tee up over there- it'll be a squeeze but if i get the right angle i'll be alright.... ok ball is teed up i'll take a practice swi.. oh shite, i'm right in those leaves. That was a bit daft. I might have knocked the worst of them out of the way, but i'm not sure.... Ok, i'd better move the ball across a bit so i CAN get a swing at it.."
i can understand the rule