I have experienced flying on the DC9-10s occasionally when traveling to Billings, MT (BIL).

Interestingly enough, one time it just so happend that the jetway was not working and we had to use the self-contained airstairs to deplane. The flight attendant said that it was the only aircraft left in the fleet that had self-contained airstairs. Not sure if that was the -10s only or all of the DC9s, but an interesting fact none-the-less.

Senator Conrad Burns was on my flight both directions that trip. I flew in Thursday night and flew out on Sunday afternoon. I have had him on many other flights to MSO, BIL, BZN, & FCA. He is quite loud when talking.