Paradox - You have the same right to the trail as the expert riders. They were beginners once also - they just forgot. I agree with everyone in that if you can safely pull off the trail, then let them pass. If they have to wait, it helps them learn patience.

I was doing a women's ride once a couple of years ago. We were on a local paved trail (Creve Coeur park). Another lady and myself were slowly coming up on a woman on a hybrid. She didn't look very stable. We announced ourselves many times. My friend went by and the woman got very shaky. I came next, again calmly announcing myself. As I went by, the woman lost it. She fell over down a small bank into a bed of rocks. We both immediately went to her aid. My friend took care of her boo boo's and I adjusted her bike.

The bummer about her was that this was her first ride on this new bike. Her husband had brought her to the trail and left her. She was also on the wrong style bike - she should have been on a comfort bike which would have given her more stability.