Not my hand here but was sent this to add to the interesting hands!

Partner opened 1♦ with this hand.      The next person doubled.    I redoubled, (“10+ points, no support for partner’s suit”) with my 10HCP and singleton diamond, hoping to double again for penalties whatever opps bid next.   They didn’t bid anything though!  The fourth person only had 3 points and Jxxx in ♥ - which he/she should have bid of course.  My partner was happy enough to leave the redouble in and made 9 tricks in the end for +630!

We did have a non-vul 4♠ on, with a 4-3 spade fit, but 630 was much better.   Rarely have I seen that happen before.

The moral of that story being.... never leave a redouble in unless you’re absolutely certain that the contract will go off!