i recall one woman had to pay lot money to the music company when she was caught with their mp3 songs taken from warez.
it was in Arizona i think.
but that's like lightining striking one in a billion person.
like FBI or CIA puts their people download torrent and hence they can see your IP in their utorrent's 'Peers Tab' and then raid your house.
like they don't have any other important work.
(if they're doing so, then everyday thousands of youngsters in america would go to jail, downloading latest movies and mp3.)
you are unnecessarily worried man,
chill and enjoy it. nothing will happen.
you can use proxies in utorrent if you are so worried.
you said "I usually just download torrents with good comments about them, then delete them off utorrent once theyre done downloading."
but still you downloaded it hence if they were watching you - they'd have got your IP anyways.
besides most movies are free and legally available on youtube + most paid softwares have alternative freeware GPL softwares (like photoshop to GIMP)
so you can do with out torrent if you try.
also torrent can be addictive and hence hazardous to your eyes and electricity bill.