If you really want to mess with people, especially in a trap-heavy spot, use a "reverse trigger trap" (that's what I'm calling it unless someone else comes up with a cooler name.) The only way to set it off is to try disarming it.
Basically, in the middle of a cross-crossing mass of tripwires, have a mousetrap that's, effectively, already tripped - the only thing preventing it from snapping shut is a tripwire attached to the bar of the mousetrap, not the actual trigger-plate. So, when the "I'm not paying attention because I'm overconfident" rogue pulls out their scissors and starts cutting tripwires willy-nilly (as part of their disarming process), the reverse trap goes off. Naturally, this one's an explosive trap, so the other ones go off because of it....
One of the best trap mods I've dealt with had a pair of rectangular tables, repping a "trapped tunnel" that I had to crawl through. No room to move, traps *EVERYWHERE*, and a giant scythe that swung back in forth for a disturbing amount of massive damage, just to keep me on my toes.
The biggest problem I've seen with traps has been the crazy amount of prep time. Doing more than a couple of traps can be pretty time consuming. That said, one sprinkled here or there, especially where it's not expected, works wonders. If you get a couple of tent stakes, you can make an easy "land mine" sort of trap that's fairly portable and fast to set, but that only works well outside.