Another hard day for lil' Engie

Decided to play Engie the other day on Casual.I was building my sentry and ran out of metal.
So I ran to a nearby big ammo pack and a Soldier on my team (with a name "IamCancer") took it before me.
He wrote something in chat,I thought he wanted to apologize.
He said "Nope.Did that on purpose.".And rocket jump away.
We lose our capture point instantly because my sentry defense are weak.I instantly disconnected as well.Wow,teammates are great.

And this is why I play Spy instead...

*also sorry,I got a lil bit lazy for the background :<