Are you kidding? Of course INFJ's are bad asses! I'm as "bad assed" as they come, by any definition.

I ride a motorcycle
lived on a sailboat
have flown a plane before
teach boating classes
studied Okinawan karate for several years (including tonfa use)
Have a basic understanding of saber fencing
scuba dive
kayak
travel internationally
supervise a bunch of people for the Gov't
know how to knot a tie three different ways
know when how to use every piece of fancy silverware a restaurant can throw in front of me (including chopsticks)
I speak English with and without a Southern accent (as needed)
Speak some Spanish and German, too.
I can do differential equations and design and build things out of concrete, steel, and timber
I direct bulldozers to knock down trees
I can operate a trackhoe (excavator)
I broke a machette chopping through the jungle to inspect a levee failure
I can identify poisonous snakes and plants
I know what to do if attacked by an alligator
I'm pretty well-versed in classical literature, music, and theatre
Play several musical instruments
Am an expert yo-yoer
Have experience with a variety of firearms
Do most of my own motorcycle/car/boat/home maintenance
Know how to do 120V/240V AC and 12V DC electrical wiring
Grew up doing air conditioning work
Do my own plumbing
And graduated number 1 in my department from engineering school

You know what, though? I'll bet everyone in this Tribe could come up with pretty dang impressive lists of their own. INFJ's are awesome. We're smart enough that we can do quite literally anything we want to and we are able to understand and relate to people better than almost anyone else. We're natural leaders and loyal followers. Anything anyone else can do, we can do better ;)

That's pretty badass if you ask me!