Modern viewers may be horrified by medieval images of people hunting unicorns, but--to judge by medieval images of unicorns--medieval people may have seen unicorns as a little....murdery.
(BL, MS Sloane 3544, f. 4) #MedievalTwitter
When not being hunted, medieval unicorns mostly seem to be attacking other creatures, like this poor elephant.
(BL, MS Royal 2 B VII, f. 100v)
Or these bears.
(BL, MS Royal 10 E IV, f. 157)
Or this lion.
(BL, MS Royal 2 B VII, f. 190v)
Here's a whole troop of them fighting Alexander the Great.
(BL, MS Royal 15 E VI, f. 21)