Sit down in a cafe, lean your mobile against something on the table, call someone on speaker phone and have a conversation as you would with someone sitting opposite you for 20 minutes.
This is annoying and antisocial isn't it? The voice coming out of the speaker is not the same as the voice of someone sitting in the cafe...
AIBU? I'm in a cafe waiting for my kids to and this fellow customer is annoying me, but I'm wondering whether I'm unreasonable and it's no different to talking to someone in person...