Thanks. A long time ago my friend showed me a piston from a motorcycle engine that had hole in it! But the less severe damage I have not seen in person (just photos) so always interested in learning.
Everything I look at all day is broken in some way. I could share some detonation pics if you wish. Maybe some from rapid unplanned self disassembly? Maybe something from a rapid expansion of flammable air that led to a thermal event? Ventilation?