3. Changing nappies on a seat
在座位上換尿布

The only reason you think that's acceptable is because that baby is your blood. Everyone else thinks that's disgusting.
你可能在想，不就給孩子換個尿片嗎，多大點兒事啊。可別人都快反胃了好伐！

4. Using ineffective headphones
耳機漏音

There is no point to headphones that are as loud to your neighbours as they are to you. We don't want to hear your tinny trance compilation.
耳機聲音太大了你沒發現嗎，前排后座都聽得一清二楚了。咱對你那些個洗腦神曲不感興趣。