What's your warning label?

[FolkLikePanda]

WARNING! CAUTION! ATTENTION! DANGER! THIS BASTARD IS AS LAZY AS FUCK THOUGH HE MIGHT RIP YOUR BALLS OFF IF YOU DISTURB HIM! Thanks - Me.

 

[SovietSecrets]

Warning! Tis an idiot. Stay away or be ready for some IQ dropping.

 

[Optimus Hagrid]

Eh, he's harmless. Do what you like with him.

 

[Jack and Calumon]

Spoiler: My Warning is long

[HEADING=2]WARNING! THIS FACE CONTAINS COPIOUS AMOUNTS OF JACK! WOMEN WITH HEART CONDITIONS ARE ADVISED NOT TO LOOK DIRECTLY AT JACK! THIS ALSO APPLIES TO WOMEN WITHOUT HEART CONDITIONS. HE'S VERY PRETTY! SEE? SEE HOW PRETTY HE IS? I WANT TO RUN MY FINGERS THROUGH HIS HAIR, AND I'M JUST A WARNING LABEL![/HEADING]

On a less plagiaristic note, I'd say "Infectious Good Mood"

Calumon: That long one, except with me and cuteness! :3

 

[sigma83]

Warning: May contain ideas.

 

[Deviltongue]

WARNING: Subject is highly unstable. Do no release near children, old people, churches, abercrombie & finch, Twilight showings, gas stations, gun stores, Vatican City, or France.

 

[2fish]

WARNING prolonged exposure to this person may cause:
Dizziness; drowsiness; dry mouth; nausea; unsteadiness; vomiting; hallucinations; fever; chills; body aches; flu symptoms; weakness, lack of coordination; nausea; stomach pain; loss of appetite; itching; spinning sensation; feeling irritable; headache; or neck pain.

or maybe just a short version

Warning
Exposure to this person can shorten you life.

 

[El Poncho]

Warning!

360 keeps freezing, do not annoy

 

[blackshark121]

Something along those lines.

 

[Plurralbles]

Warning: Do not say Shenanigans.

 

[EeveeElectro]

Warning! Will attack if provoked!

 

[ragestreet]

Warning! *message removed to present smaller target for almighty banhammer.*

 

[goatzilla8463]

Warning: Once you talk to the Goat, he will give you a one way ticket to Goat City.

 

[Emilox The Great]

WARNING! THIS PERSON IS SO AWESOME THAT PRELONGED EXPOSURE WILL BE BAD FOR YOUR MENTAL HEALTH!

or something like that xD

 

[Joey245]

WARNING: THE PERSON YOU ARE TALKING TO HAS ASPERGERS SYNDROME. APPROACH WITH AN OPEN MIND.

Yes, I actually do have Aspergers Syndrome. It explains about 90% of what I do.

 

[BabySinclair]

WARNING: may build rockets or put tails in sockets
Side effects may also include hitting, throwing, metaknowledge, limited diefic powers, and baby cuteness

That's for the avatar, for me...

WARNING: Massive paranoia and superiority complexes; may seek to cause physical/psychological harm to potential threats. Approach with caution

 

[SomeBoredGuy]

Warning: Extreme Doomsday Arcade fanboy.

 

[BlumiereBleck]

Warning do not give this person anything sharper then a crayon.