It is often said to believe the partner,however as a partner,sometimes you might not be honest.
This is a classic hand.
After opening 1♣,your responding 1♠ should promise 5+hcp,if you really respond and once you get a bad result ,I am afraid you maybe lose your partner's trust from now on.
However,if you honestly passing,and once you lose the game,I am afraid your partner might think you are a silly precisian and also lost partner's trust.
Now,how to make choice? How do you think of it?