Oh yes indeed.
IME it’s the pressure applied by the fuser roller that’s often the trigger, though I’ve seen plenty of labels wrapped around the drum kit - and then it’s usually time for a new drum, because the surface of the drum can be carcinogenic - it used to be on the old Kyocera F series printers we used. Unless you’re very good with a knife or screwdriver. Which I was. 
I print flyers on my b&w laser printer; mine is a low end Samsung and I can buy generic toner cartridges for $50 online vs $80 for the name brand. Besides being several cents per page cheaper than running off my flyers as b&w pages at Kinko’s (don’t even want to think about the cost if I was using inkjet) the quality is MUCH better. My images come out as nice clean greyscales with good gradients, and it’s fast too. The only problem I’ve had with the printer is that anything less than 24lb paper tends to get eaten/jammed. So I just make sure I get the little bit thicker stuff.
I reuse label sheets all the time (I usually print about three labels at a time.) I haven’t had any problems with them at all. But now you people have made me paranoid. Perhaps I will look into one of those label-printer doohickeys.
I posted this in another thread but I replaced my company issued Brother all in one inkjet printer/fax/scanner/coper with a B&W laser all in one Samsung SCX-4100 It lacks fax but so what? Who faxes anymore in the IS world? it has a smaller footprint, is cheaper to operate, my envelopes wont’ bleed if a drop of water hits them and I have faster printint. If I want color I have a Canon photo printer which does what the all in one units wouldn’t do well anyway.