I bought a can of mink oil for some of my leather shoes but I, of course, cannot get the can open. It’s one of those disk-like metal cans with a mysterious pair of metal hooks/knobs stuck on. Is there a trick to it that I am ignorant of?
Turn the hook/knob thing, and see if the top pops off that way?
Or else grab a fork or screwdriver or whatnot and pry it open, trying not to stab yourself while doing so. (Yes, I’ve done that.)
It’s been awhile since I had to open one of those but IIRC, you turn the knob thing until it points downward, then turn it back the other way. It’s supposed to catch on the edge of the lid and lift it as you’re turning it. Good Luck.
Explosives.
Yep, turning the knob thing is it.
But silenus, how can I get explosives under the lid if I can’t get under the lid? 
Hey, you just asked for it open, it’ll be open, in little bits all over your front lawn.
I reccommend shaped charges.