Context: My wife and I had to move far away from home recently for her grad school.  My parents were kind enough to cosign on a loan for a condo.
Speaker 1: When my wife and I had to move for her to go to school, we had a lot of trouble finding a place to live until my parents were nice enough to cosign on a loan.
Speaker 2: You must be so thankful!
Speaker 1: We are.  They've helped a lot during my life, but this might have been the biggest one.
Speaker 2: They are really wonderful. Do you have plans to show how thankful you are?