"Mannen gikk berserk i skogen."

Translation: The man went berserk in the woods.

[m.g.doyle]

Fun fact: The word "berserker" was introduced to English (as "berserkar") by Sir Walter Scott in "The Pirate" in 1822. "Berserk" as an adjective was in use by 1844.

[MarkBennett6]

Those who put on bear skins - bear surcoats.

[RoyBoy432]

Better to do it there, no doubt.

[Nic698651]

More likely standing in line for a checkout, just before Christmas, though. Woods are actually very calming.

[Kennebekk]

Would "crazy" also have been accepted?

[Luke_5.1991]

Yes.