User:Theoldfellow
Once upon a time there was this old guy who worked as Technical Director of an International IT Company. He was also a Fellow of the British Computer Society. We'll call him theoldfellow.
Now, the company policy was to sell Microsoft products, and indeed the company had a partnering relationship with Microsoft. This policy had been set by theoldfellow's boss, the CTO, and the CEO and board, so it couldn't be challenged, but the more that theoldfellow saw of Microsoft the less he liked it. The people were arrogant, and the products not much good, the trouble was that it sold well.
When the old fellow finally retired, at the early age of 52, he decided that nothing with Microsoft's name on it would ever come into his house again. So he rebuilt his PC with Debian Linux.
This was all very well, but theoldfellow had been steeped in Microsoft for a long time, in fact since the later 1970's when the company had given up System V Linux for the Microsoft world. Debian was very hard to learn.
Then theoldfellow discovered Linux From Scratch (LFS), and everything changed. By building his Linux system himself theoldfellow learned Linux from the ground up.