I'll add my own I guess:
- if you ever called sick to school/work to take care of your snake(s) aka visit to the vet, be on hand to assist on that female laying a clutch, clutch pipping, etc.
- if your spouse has taken up herping just to be allowed in the snake room to have at least some quality time with you.
- if you plan your vacation around breeding, laying and hatching (sorry sweety can't go on that 75% off dream vacation, I need to be there in case they start locking).
- if you have better archived record of your snakes past feed/shed/lock(all with pictures and videos) then you have of your own wedding.