Your partner opens one club in 4th seat, right hand opponent passes, and you hold this crummy hand (vul vs not vul):
It’s a bad hand, but you do have a nice heart suit. Should you bid or pass?
The danger is that your side will get too high, even in the likely event that partner has a strong hand. You might consider a weak jump shift to two hearts, if that is your partnership agreement. Weak jump shifts, including when you are not yet in a competitive auction, are becoming pretty standard these days. But don’t forget that you are vulnerable.
Most pairs chose to bid their heart suit at the one level, and the bidding got too high for your side. The best result was when partner was allowed to play one club, which made two. This was your partner’s hand: