[Gadgeteer Tom]

Tie between psi sharks and unicorn/dreadmares, they avoid getting close, are darn hard to silence too.
Unicorn types eventually can be paralyzed - then I prefer the others to run away. Unicorns also can be hurt with eye for an eye - while psi sharks have very high resistance to the spells they use - so eye for an eye is not so handy. But psi sharks often get within range of a tripleshot crossbow, and some hunter quarrls will eventually knock them out so I can get close enough to clobber 'em.
Don used to annoy me, but recently he shocked me by dying in round two of a Death cloud (which I just bought from him).
Tiny can be worth the money sometimes to have as an ally - otherwise I've always just ran for it (although on occasion I've waited till red dots close in before approaching - Tiny will ally if no discussion of fee has occurred - and I just run off and leave him with the baddies...