You forgot, "Report trash support!"
Or the other end of the spectrum, you set up free and easy kills and they just farm... and farm... and die.
SO TRUE!!! The worst part they go back in fight with low health after I just used all my mana to save the adc the first time. I have no more mana to save the adc the second time so I am like fuck it its your funeral.
"Im gonna try catch out the fed chogath!" ults and runs into melee range, gets blown up without spellshielding "omg noob team do something"
Thank you for this for this glorious gif based laughing fish.
And then I get blamed... #supportmainproblems
When I'm support taking all the poke for the adc http://i.imgur.com/fj5mErq.gif
Ofcourse it's the reverse when you are playing 
I can't tell you how many times I ulted to pull my support out of danger and they just use it to go back in.
And I'm that one ADC player... who seems to be the only one who sees that ADC's are hated and yelled at on the boards... okay.
It's a reverse situation when I support a Kalista and she ults me.
'OMG you were almost dead! I ulted you to save you, why'd you go back in!'
'I thought the knockup would be useful ;__; '
The opposite is true if your adc is
and you're playing someone like 
meanwhile the support afks int he bush because they have no real reason to be playing that subpar role int he first place. Then they have the audacity to complain about the ADC dying in a 1v2 under turret while the support is afk in the enemy's red-side jungle.
Yeah the support is never the trash player it is always the ADC that plays terribly..