2 dyslexic skiiers are skiing down a slope
first 1 starts swishing side to side saying "Zag-Zig, Zag-Zig"
2nd one says "it is Zig-zag you idiot"
they carry-on skiing arguing this point for a while
when they suddnely get sprayed with snow from one side
they both look around and see what they think is a Bobsleigh
"nice Bobsleigh" says skiier 2 "are you the driver?"
the man looks up from his seat and says "I am a tobogannist"
"oh," says skiier 1 "in that case I'll have 20 Marlborough Light"