So this happened. I work in an office with 8 women and one other guy. We have a water stand that holds a big bottle of water for us all to drink. When it's over somebody puts a new bottle. Personally I have done this many times. Now the water was finished once again and this lady comes in shouting I need a man to put water on. And I'm like "why don't you do it yourself?" Asking in a surprised way (since its not a big deal) but she replies full of irony "I would do it but since there are men around YOU DO IT". This made me extremely angry and of course I didn't move, but my colleague being such a nice guy goes and does it. And all the ladies started blaming me for being not a gentlemen and all this sh*t... How do you handle this?