Well, human merchants, anyway.
i got my first goblin ambush ever just as i was getting my first ballistae set up. (Yup, I'm a noob.) . i thought 'Oh crap, I wasn't ready!' but steele myself for the inevitable bloody conflict. They killed my fisherdwarf, and some glassmaker guy (no big loss, i have no sand), as i hurried to try to finish assembling the ballistae.
A human caravan arrives and wipes out all but one with their guards. My axe dwarf knocks the last one into next week. Well, his upper half went into next week, the lower stayed where he whacked him.
On the one hand, I was sort of glad, but on the other hand i was terribly annoyed at my dwarves being deprived of battle, win or lose.
Anyone else have this happen? I'm guessing so, but tell me your glorious stories so I can enjoy them vicariously