The Mythbusters did a thing on water torture with water dripping on someone's face. It made both of the main guys wet their pants after about 30 minutes of sitting under it.
I posted a link to one such cool program in this thread: Screen Cappers or Feed Viewers tools.
I wrote a tool as well that I shared with some. I made it special in that it will automatically refresh the feed after a set period of time, as well as rotate through each feed one at a time every so many minutes. That way I automate screen caps overnight. If that's the program you're thinking of I can see if I can find all the pieces of it again. I've got the executable but I think you need some run time files as well. PM me if that's what you were thinking about. (you can also open it multiple times on different streams but it takes a machine and internet connection with some horsepower to do that)