Unwanted Blessing

Unwanted Blessing
Question: Do all blessings given to you (by a Chatan or Sandak or Rebbe) have an effect even if you do not want the outcome of the blessing. For example, if someone was given a blessing to marry a certain boy, and there is no interest whatsoever to marry that boy, does the blessing have any affect?
Answer: The intention of the person's blessing was for the other person's benefit. And if it is not the other person's will, the blessing therefore does not work. Furthermore, when we recite a blessing, we leave the choice of what to do with the blessing to Hashem, and Hashem does want he wants. Therefore, there is no reason to be concerned.