I can't stop wondering if IBU or unfair to other people!
In Aldi this morning and gentleman their with his DW. She clearly has a disability and he was holding her hand, she walked slowly with her hard down and unsteady. I witnessed people barging past in annoyance a few times and was 
At check out I went into quiet queue, 1 person in front already unloaded. Queues then all got busy quite quickly and this man came behind me. I was about to offer to swap when the announced the till adjacent to us would open. He went to move over and the person behind him and approaching tolls literally shoved their trollies to the conveyer belt - 1 almost hitting his trolly.
Clearly I'm not BU to think this was entirely wrong and they are arseholes - but AIBU to think Aldi should introduce a disabled till like other stores?
(Btw I did then swap with him and he looked grateful but declined my offer of loading the conveyer belt and I respected this)