Audi drivers. Apologies to the good ones out there, but you do seem to be in the minority.
People who drive to the gym in dry sunny weather to go on a treadmill or exercise bike. To quote Gandalf 'run, you fools!' (and save petrol)
Fitbits. My wife got me one as a present a few weeks ago, and the basic data on the wrist thingy is quite good. However I've already spent valuable time trying to understand the app which I could have spent exercising.
Fitbits 2: Why someone hasn't yet cornered the market in Fitbits for inert technophobes like me. How about a FatBod, worn on the dominant hand, measuring only 2 things: minutes of inactivity in the day, and number of times the hand was moved to the mouth and back (it could measure wrist tilt to distinguish between food and drink). Overall target - reduce both. Obviously for habitual nose pickers that could be a problem.
Why helping someone who wants to change who they are sexually attracted to could be considered a criminal offence, whilst helping someone who wants to change their sex is ok. Why is some 'fluidity' ok and some not? The massive incoherence and inconsistency is this is no help to anyone, and its not helped by the shouty nature of the debate, if it even is a debate.
The Marvel Cinematic Universe. Ok, it never made any sense to start with, but it makes even less sense now. The same thing happened to Dr Who, when it started going for the 'story arc'. The latest Marvel offerings have jumped off from the successful raid on Norse mythology (Thor) and are trawling the history of global polytheism for characters. Really enjoyed Ms Marvel, though with my limited exposure to Muslim culture, I had no way of knowing whether its portrayal was accurate or not, so it may have been an education, but I'm still not sure.
Why nobody has made the link between the sudden and sustained fall in Uk productivity in 2008