[diroussel]

A seagull manager, like a seagull, flies in, shits all over things then flies out.

[WaitWaitWha]

... steals the best sandwiches from children's hands, while declaring "mine, mine, mine, mine"...

[ectopod]

Animals exhibiting this behaviour are known as kleptoparasites.

[swader999]

Sometimes they eat the plastic lunch bag and die.

[BLKNSLVR]

Don't forget the incessant screeching.

[pojzon]

Thank you Ill remember this explanation as it hits the base so hard.

[dmje]

I also like "mushroom managing" - cover them in shit, keep them in the dark...

[a3n]

And sometimes they steal your french fry. Or your red Swingline stapler.

[thunkshift1]

Poetic