What? Is that for real?
Edit: It is!
> He loved to ride his bicycle through the countryside. To time himself, he would simply tie an alarm clock around his waist. During the war, according to I.J. Good, a Cambridge mathematician, Turing suffered horribly from hay fever during the first week of June every year. So to keep the pollen off while riding, he wore a military gas mask.
- https://www.washingtonpost.com/archive/1999/06/09/alan-turin...