Yea well, have one sniffing through the tent inches from your arm and you might sing a different story when the hair on the back of your neck actually goes up. That happened to me just this spring in Algonquin. If we would of had an empty snickers wrapper in the tent things may have turned out different.

20 years backpacking/tripping.....my black bear encounters
1) two close encounters with blacks in Glacier. One I had to chase out of the food eating area and one just off the trail. I made a mistake with the one on the trail by yelling at it. I put two unseen cubs up a tree. Yes the blacks are less protective but still a mistake
2) 3 separate sighting in Quetico
3) had food swiped and had bear approach tent in BWCA
4) laid siege for a surprisingly long time in Algonquin this past spring. Tracks around our tent, dry bags batted around and the freaky sniffing by my arm
5) bear swam in front of my canoe (excellent!) on my French river trip this fall

It is not silly or foolish to have respect of things that can deprive you of your life or at the very least make life complicated as in the case of a bear taking your supplies. I am equally "fearful" of camping under a dead tree. Rather unlikely it's going to fall on me right? I mean I would have a better chance of hitting the lotto........