After you have checked "everything" and go on your ride, keep an ear peeled for any loud clunking noise that sounds like a bolt has fallen out and is bouncing off the road into the bottom of your car.......when you get home make sure to replace that bolt.
Put it this way, if you hear the kind of noise I described, don't be delusional and put it off to something that you ran over......
Not saying this has happened to me or anything.....just saying.