How often did you see “weird” stuff?
I am not sure what your definition of weird is, but I saw different traffic conditions every day. When I worked in the tower, we had radar there too, for help in sequencing C-5s, KC-10s and C-141s. What scared me, more than once, was when a heavy pilot told me he was turning base, and the optical illusion, made me think he was turning away, instead of turning toward the airport, like he was supposed to. That was scary, but I just looked at the radar, and the radar could never show an optical illusion.