Microlights on approach
Flying the Cambridge ILS on Friday afternoon, foggles on, ATC tells us he can see (out of the window, not on the radar, we're on Tower by now and they don't have radar) four microlights crossing our path at about our height. Instructor then spotted them, decided we were going to miss safely, I continued the approach.
Yes, we all know that they were legally entitled to fly through the instrument approach in VMC in class G without bothering to talk to Cambridge.
After landing the instructor asked me "did you read about the Coventry incident?"