debratant, I have burned those BBW candles in plastic too, did not have a problem, oops, I must be stooopid, lol!!! I did have 2 unscented tealights in metal containers catch on fire a few years ago that were purchased for a tl warmer. I have had plastic tl containers that never caused a problem, so really it is evident that any container can cause a problem. Nope, you are not stupid, and neither is the original poster, you just had a fluke container, and/or wick wax fo combo. Who will ever know? As much as I loved t lights, I will not use either type anymore, but that is just my experience and the chances of it ever happening to me again are probably next to nil. I just happen to like other types of candles now. Fortunately for all of us, there are some really considerate people here who will share their knowledge with consideration...as for the others, the Terms of Service in the FAQ section guides us on how to handle them. Have a good evening!