It's interesting, every time I see a kid with with one of those bubble blowers (the kind with the spinning mickey or ariel etc. that they sell everywhere at MK) in a ride queue, there are always about half a dozen kids in the line laughing and catching bubbles, and at least one grouchy person complaining it is getting in their hair/face etc. Sort of a utilitarian dilemma--does the joy of entertained kids outweigh the annoyance of adults? Would the kids be even more annoying to the adults without the bubbles (e.g., rattling the chains that line the queue)? End of the day, as long as Disney keeps selling them, I think it is just one of those annoyances that goes with the territory of being at MK--along with the lines, the heat, the crowds, the bag checks at the park entrance etc.