If these inconsiderate prats can't use common sense and take their backpacks off then they should be charged twice. With the amount of different people around the world using transit here there's cultural differences so I think there needs to be more done in regards to 'reminding' people about basic transit etiquette. When in Rome and all that.
Here's this classic website on London Tube etiquette -
http://victorian.fortunecity.com/fin...tuberules.html
Lesson one - reading other people's books/letters etc
Lesson two - when to give up your seat
Lesson three - Don't stand so close to me!
Lesson four - Look before you sit
Lesson five - Let passengers off the train first before you get on
Lesson six - Try not to carry massive rucksacks
Lesson seven - Stand clear of the closing doors
Lesson eight - Mind The Gap
Lesson nine - Stand clear of the droning bores
Lesson ten - Don't talk loudly on the tube
Lesson eleven - Don't think that your bags and suitcases are entitled to a seat
Lesson twelve - Don't throw up on the tube, it's catching!!!
Lesson thirteen - Stand on the right when travelling on escalators
Lesson fourteen - Shut Your Legs
Lesson fifteen - Snogging on the Tube
Lesson sixteen - Coughs and Sneezes Spread Diseases
Lesson seventeen - Don't fall asleep
Lesson eighteen - How to get a Seat
Lesson nineteen - Trust no one
Lesson twenty - You are not invisible all of the time
Lesson twenty one - The art of balance
Lesson twenty two - Fainters will be discovered...eventually!
Lesson twenty three - Avoid eye contact
Lesson twenty four - The barriers are barriers
Lesson twenty five - Don't blow your nose
Lesson twenty six - Not all tourists are annoying...just most of them