Obscure screw added so appliance cannot be disassembled
Basic blender went bad (motor ran but spindle wasn't rotating). I wanted to disassemble to see if it could be repaired. Three of the four screws were Phillips head. I had to cut the casing open in order to discover why I couldn't unscrew the fourth. It was a slotted spanner.
Just a basic security screw. It's so kids (and people who don't know enough about repairing appliances to know about security screws) don't disassemble the dangerous machine.
Grinding a notch into a flathead screwdriver is annoying but it'll still work fine as a flathead even afterwards. I would probably just grind the bulge out of the screw though.
They didn't find the screw by breaking the blender. They were able to reach it with a screwdriver before that, just not the right one. They broke it because they were too impatient to find a way to look into the hole and then find, make, or buy the right tool.
I have a set of these that was part of a larger set of precision bits I was buying anyway. I've only ever used one of the security bits in like a decade of having them. I wouldn't have bought the security bits alone.
Phone camera; $30 digital microscope; $30 Endoscope. There are just so many better ways available to look down a hole to see what's at the bottom than to tear apart the space around it.
Spanner bits are available in sets starting as little as $7. They are anything but "non-standard".
Is that new blender going to help them fix other things around the house? $30 endoscope plus $8 screwdriver is still cheaper, and now they've broke the one blender, they've given themselves the excuse to just buy a new one anyways. Sure, applaud them for it, here of ald places.