In a competitive auction when your partner hasn’t supported you, rebidding or jump-rebidding can be “deep and dangerous” in Shakespeare’s words.

I learned this to my mortification in an OK Bridge game. I was sitting North, with West dealing and both sides vulnerable:
      
                                NORTH (Me)
                               ♠️ 9 3
                               ♥️ A J
                               ♦️ A Q J 6 5
                               ♣️ A J 8 4

WEST                                                    EAST
♠️ Q J 10 7 4                                       ♠️ A
♥️ K Q 10 7                                         ♥️ 5 4
♦️ 10                                                    ♦️K 7 4 3 2
♣️ Q 7 5                                               ♣️ K 10 9 6 3

                              SOUTH
                             ♠️ K 8 6 5 2
                             ♥️ 9 8 6 3 2
                             ♦️9 8
                             ♣️ 2

The bidding proceeded as follows:
  
West              North          East         South
Pass               1♦️             Pass         Pass
DBL              2♣️             DBL         2♦️
Pass              Pass             DBL       All Pass
Opening lead: ♠️A

I figured that with a decent hand I had the right to rebid. The result was down two doubled for a disastrous -500 penalty that submarined any chance to place in the session. Better to pass on my second bid, leaving opponents to work out a misfit.

(Don’t be so tough on yourself, Jim! You didn’t commit a mortal sin! The minor suits broke horribly!)

Two boards later an opponent was snared by his own hubris. He was sitting South and dealing, with both sides vulnerable:

                        NORTH
                       ♠️ J 10 9 5 4
                       ♥️ 2
                       ♦️ 5 2
                       ♣️ 9 8 6 4 3

WEST                                           East
♠️ A Q 7 3                                  ♠️ 8
♥️ 10 8 6                                    ♥️ Q J 4
♦️ Q J 9 6 3                               ♦️K 10 7 4
♣️ 2                                            ♣️ K Q 10 7 5

                      SOUTH
                     ♠️K 6 2
                     ♥️ A K 9 7 5 3
                     ♦️A 8
                     ♣️ A J

The bidding proceeded as follows:

South         West         North          East
1♥️            Pass          Pass             2♣️
3♥️           All Pass
Opening lead: ♣️2

In this case, South had the right to rebid his excellent hand. But 3♥️? That meant contracting to make nine tricks with no help from partner. South went down two for -200. Better to rebid 2♥️, down one for a more palatable set.