Well, there's always that quote from Bill Gates when Jobs accused MS of stealing Apple's GUI design:
“Well, Steve [Jobs]… I think it’s more like we both had this rich neighbour named Xerox and I broke into his house to steal the TV set and found out that you had already stolen it.” - Bill Gates
I always found it weird that Gates characterized it as Apple "stealing" the TV set. Xerox gave the TV set away! They had made a pre-IPO investment in Apple and in exchange the executives were happy to show Apple what they were working on (to the dismay of the actual researchers)
“Well, Steve [Jobs]… I think it’s more like we both had this rich neighbour named Xerox and I broke into his house to steal the TV set and found out that you had already stolen it.” - Bill Gates
Source: https://www.goodreads.com/quotes/824084-well-steve-jobs-i-th...