Once I posted on a thread he opening <marquee> tag, my comment, but messed up the closing tag [John Robinson has added code to prevent unclosed tags - old threads were full of "Italians off!" comments].
Needless to say the following comments were scrolling off the page and possibly made a few people sick trying to read the text. Back in the day we would have multiple levels of the tag making the embeded text scroll left-to-right, while the outside text scrolled right-to-left at a different rate. We werer bored ;o)
All my typos are belong to me. Dang I need coffee.