A...challenge?

1.When I was 7 or 8 I spent many hours dressed up as a traveling salesman.
2.I still don't know what possessed me to do it.
3.I'm in the mood for a cigarette tonight but I am resisting.
4.I totally agree with Thoreau when he said that most men lead lives of quiet desperation.
5.I'm finding it extremely difficult to write random things down about myself.
6.I've been told that I am often too serious and intense.
7.I find it painful to discuss inane pleasantries with people I hardly know.
8.I love to get on my belly, remain very still, and look at insects.
9.I think Porfiry is one of the most intelligent and kindhearted people I've ever met.
10.I feel life so intensely sometimes that it makes me want to jump out of my skin.
11.I like to bend the rules.

I should have added to my list the fact that it's almost impossible for me to resist a challenge. Oh well, that was strangely therapeutic. Thanks :)