I was on a ride on Saturday and I saw a woman cyclists with two tubes out and frustration on her face. I yelled, "are you Ok?". She yelled, No. I stopped, gave her a tube and a CO2 cartridge and got her tire on her rim for her. That is the sixth tube and CO2 cartridge I have given to stranded riders this year. What goes around, comes around. Hopefully, I'll find someone that can help me when I am stranded.