Be warned: unfriend a colleague at your peril.

Word to the wise: Don’t delete your colleagues from Facebook and always say ‘good morning’.

Navigating the colliding worlds of work and social media is never easy.

And it might get even more complicated now that a workplace tribunal has decided that unfriending a colleague on Facebook can be considered a form of workplace bullying.

The Australian Financial Review reports that Tasmanian real estate agent Rachael Roberts took her boss’ wife and sales administrator Lisa Bird to the Fair Work Commission, claiming Ms Bird had bullied her.

This makes things very awkward in the Mamamia office… Jokes. We’re all pals here.

She claimed Ms Bird accused her of being a “naughty little school girl running to the teacher” after she complained about the display of her properties.

She discovered later that day that Ms Bird had deleted her as a Facebook friend – a move the tribunal found showed a “lack of emotional maturity”.

“Mrs Bird took the first opportunity to draw a line under the relationship with Ms Roberts … when she removed her as a friend on Facebook as she did not like Ms Roberts and would prefer not to have to deal with her,” commission deputy president Nicole Wells said.

Nope, don’t do that. Now that’s bullying.

Ms Bird was also found to have acted unreasonably by not acknowledging Ms Roberts in the morning and not delivering her printing and photocopying as she did to other employees.

It just goes to show that there is more at risk with having colleagues as Facebook friends than them seeing photos of you at the beach when you’re meant to be home sick.

Sometimes, it’s just not worth the hassle.

(Or, have colleagues as Facebook friends and don’t be a dick. Your call.)

Are you Facebook friends with your colleagues?