Of course it took a 33-cent stamp to get it to my house.
Mr. Cactus informed me that it takes $25 in business handling fees to mail out a refund check. He thinks I should write the Laboratory Corporation of America and let them know we have a suggestion that would save them a lot of money in the future. Most corporations have a computer system that kicks back checks under a reasonable amount.
To make this situation even more ridiculous, this refund is from a lab test I had taken a YEAR AGO. (They should pay me interest on that penny!)