Kings/queens of fails.

They don't use Siri properly:

Twitter: @CeciMula

They can be oblivious:

Twitter: @mayrasendejo_

Twitter: @SialeGang

They're too quick to send pics:

Twitter: @WhiteKidCanJump

And emails:

Twitter: @CBMSt1

They're vague:

Twitter: @JorjiIsAwesome

They assume everything's about them:

Twitter: @decentbirthday

At all:

Twitter: @Miisssliz

They don't follow directions:

Twitter: @adam_cook2014

They don't always think things through:

Twitter: @NOTVIKING

They don't take care of their things:

Twitter: @SamerButi

Ugh, millennials.

Paramount