No, and no. But I know it's a possibility on the wood. I've never heard of too many people bending needles. Not knitting, anyway.
OTN: Eyelet Chemise in Handmaiden Sea Silk (colorway: Midnight). Still. And a purple Donegal Tweed set of fingerless mitts, to try out my new Hiya Hiya interchangeable needles.
Latest FO: A shrug for an Anthropologie swap in beautiful Casbah sock yarn, in Cedar, a dark green semi-solid, my own pattern. Also a quick Noro Silk Garden neckwarmer for my friend Aideen, in a vine lace pattern.
Never used wooden needles, so I can't help you there. I have had my bamboo needles warp after a time, but it never rendered them unusuable.
I have accidentally bent aluminum needles myself, but that was more me being dumb than the project causing it. Also, I have a lot of pairs of Boye aluminum straights that I still use from time to time. I used to use them all the time, though, and on some of them, the paint wore of the tips and they got a rough edge.
If at first you don't succeed....rip it and try again!
I've had aluminum needles bend on me after years of use. Especially when I used to used them for heavy things like sweaters and afghans. They still work just fine though. I also had some plastic ones that really bent, I think maybe from the heat my hands on the plastic and again, heavy projects.
I have broken the bamboo ones. BUT it's because I was knitting thick yarn on size four needles. I was making mittens so it was necessary to make them uber warm. Anyhow...I was in the middle of the row and SNAP. Therefore, I no longer use wooden needles
The only metal needles I've ever had bent on me are the Boye ones that are smaller. My Susan Bates an Addi Turbo's have never bent. I do have some plastic needles and they bend while I knit but they always go back into shape.