Every institution has one.
OFAP has occasionally been convinced to port some of his code to Unix, but of course never got further than V7. Once tried to port Spacewar to a modern machine but it wasn't fast enough. Knows that Sketchpad is the greatest drawing program ever. Knows what all the funny mode bits in obscure TECO Q registers are used for, and exploits them in his programs, which are an unholy mixture of assembly language and TECO macros.