The other says, 'you mean zig-zag'
'No, I'm sure it's zag-zig.'
' It's zig-zag, for sure.' say the other.
'Go and ask that bloke standing over there' suggests the one.
So one goes up to the bloke and says...' Sorry to bother you, but could you settle an argument for us? I say it's zag-zig and my mate reckons it's zig-zag, what do you think?'
The guy answers..' I don't know, I'm a tobogganist'
'Oh, OK then....
Spoiler: