I got randomly bellowed at this evening. I was walking up Milton Road towards my mum's house, when a van or minibus or some vehicle of that general type drove past. Some lads leaned out of the window and jeered incomprehensibly at me, then laughed as they drove off into the distance.

To some extent I get annoyed by that sort of behaviour simply because they tend to be large and intimidating louts with an air about them of ‘I can be deliberately obnoxious at you because I know you can't do anything about it’. But it annoys me an enormous amount more when I haven't the faintest idea what it was about. If they'd been laughing at my hat, for example, that'd have been at least understandable – but I wasn't wearing it. The tiger design on my T-shirt might have been a believable object of ridicule, except that they started bellowing before they saw my front, so that wasn't it either. My flies were done up (and see previous comment about them not having seen my front yet). What was it about me that obviously said I was someone they should laugh at? It bothered me all evening.

Fortunately, I think I've worked it out now. There was a match at the football ground near my home this afternoon; my suspicion is that the winning team probably wasn't the home one, that the louts were away supporters, and that they were jeering at anyone who looked like a Cambridge resident in a ‘we kicked your butts just now’ sort of way. If that's correct, then all I did to arouse their scorn was to be on foot in Cambridge at the wrong time. Phew.

In other news, I've spent today writing another game for my puzzle collection. (Yes, another one. It just seemed like a good idea.) Any devotees of Rubik-style puzzles might be interested to have a go at Twiddle.