Lol. I can’t recall if I’ve ever had to actually award the bonus treasure from this setup.
The most memorable case was a crit 20 on an investigate roll, well after the aftermath of the fireball.
And even then, the party member who figured it out just shrugged and said “worth it”.
The party at least got to cash in the ruined scraps for a little extra cash, as a reward for the bothering to make an investigate roll.
Baby steps. Haha.
If only we could all be so lucky to have public access to a Fiction, Sci-Fi, Philosophy, New age, Unexplained, Fantasy, Restroom!