well the front bolt that holds the mount to the engine had been broken by the previous owner so I was using one that wasn't actually meant for it and I'm guessing maybe the nut might have just loosened and the front bolt fell out, the back strap still has me confused, but after putting the can back on with a bolt I picked up at ace hardware I noticed a huge mistake I made when I was about 20 miles from home. I didn't check how long the bolt I got was, if you don't know the oil filter is right on the other side of the bolt hole. so it was pushing into the oil filter and eventually wore a hole, having said that I now know what it feels like to have hot oil shoot up my pant leg as well as leave a giant oil slick on the road. somehow, luckily, there is never anyone behind me when this sh*t happens.