Just how many people are completely incompetent at manouevring around shops etc without constantly getting in the way.

No proprioception, no awareness that doing things like..... standing with buggies outside lifts with no intention of using lifts, or having a slow chat in the busy exit of a shop, or just standing in pairs doing absolutely nothing but getting in the way might be the most annoying thing they can do when at the shops.....

Guess it comes down to whether they're stupid or cunts, there arent any other options

Not going to shops until mid Jan