I made Maple Syrup while living up north. We had a lot of sugar maples on our property and when a neighbor moved, he gave me all of his sap buckets so I decided to make some syrup with my kids. The sap ran like crazy that year and I had buckets and coolers full of sap, so was using all 5 burners on our gas cooktop on high to boil it. Partway through, I set a metal spoon on the tempered glass top part of the cooktop, and it must have acted like a heat sink and with all the burners on high, it shattered the cooktop. My wife wasn't happy and so I went out an bought a turkey fryer to finish boiling it off outside. After all was said and done, we got about a gallon of syrup. Replacing the glass top cost about $200 and the turkey cooker was another $45, plus the gas and propane. Needless to say, at ~ $250 / gallon, we used that syrup judiciously.
It was also my last time making Maple Syrup.