We regularly review steering turns in the glider training program and talk it over with the tow pilots. We rarely use it in flight. Normally the glider pilots figure the tow knows where the lift is, or a destination for top of tow was coordinated before flight.

Engine failure, witnessed one. Stearman tow plane, the glider pilot saw a puff of smoke and the rope dropped from the tow in the next second. Glider ended up off field. The Stearman had popped the top off a jug and returned back to the field at minimum power.

I've had stuck valve vibrations in the Pawnee and held on to 300ft AGL and calmly directed the student solo pilot to "Release, release, release" and he did and returned to the field as did I.

Training and regular reviews.
BillT