Having done LOC-I training in a Slingsby in the Netherlands I found it nice to fly, not that I did much of the heavy handling. The instructors were RNAF and LOC-I trained.
While this is a very specific use of the aircraft for a particular purpose, I witnessed no violent aircraft behaviour unless the Instructor was demonstrating it to me. Nevertheless each preflight included repeating the parachute mantra.
Slingsby T67M200 Firefly Aircraft at APS