I mountain unicycle[0]. My favorite replies to "you're missing a wheel" variants are:
* It was a half off sale (to hikers)
* I took off the training wheel (to bikers, if they seem smarmy)
These days most of my responses are very positive, almost universally. 15 years ago this wasn't the case, especially on the street--lots of people yelling "FALL!" out their window to scare you, etc. I think a big part of the long term change has been "extreme sports" becoming a very broad umbrella.
* It was a half off sale (to hikers)
* I took off the training wheel (to bikers, if they seem smarmy)
These days most of my responses are very positive, almost universally. 15 years ago this wasn't the case, especially on the street--lots of people yelling "FALL!" out their window to scare you, etc. I think a big part of the long term change has been "extreme sports" becoming a very broad umbrella.
[0] https://www.youtube.com/watch?v=koWzoCUUIbE