Originally Posted by allaboutmusic

You have the right to this opinion, but I think you should be aware that many people would consider this not only rude but inconsiderate. Personally I don't mind as long as the person isn't yelling into their phone. People talking into their phones at a level I can't hear is perfectly acceptable to me.

Pet hate though: people playing music on their mobile phone speakers on public transport. That along with the cost and complete lack of reliability of public transport are why I gave up going green and drive instead.