Same bus most days as my commute home from work - infrequent service so mostly the same people each day.
Theres one particular woman who has a packet (or 2) of crisps every evening and eats them so loudly! Mouth open chomping and lip smacking. Everyone glares at her and the odd person tuts at her, but she just has no idea.... or she does and just doesnt care.
Winds me up way more than it should! Been a long day at work lol, can you tell?