In London it seems to be that if the pints get too many and your boss is with you, you don't return to work :)

At least in Bavaria, it's perfectly acceptable to have a beer mixed with lemonade ("Radler") during lunch.

Got taken over by a foreign company, first thing was a complete ban on alcohol, second was an attempt to replace all our systems with Windows. We produce software for Linux, our customers run Linux, the first few weeks were not very impressive.

Saw another corporate takeover from another point of view, that of the acquiring company. The company being acquired used Windows, C#, MSSQL etc for everything. At first nothing was changed, they could use their technology and we could use ours (we used free open source technologies). But they weren't very profitable or efficient. They paid large amounts of money for licenses. Some years later they had managed to move some of their stuff to the cloud but they were now in that particular cloud vendor lock in, paying a lot of fees there. Five years later, almost everything there was shut down and development moved to headquarters to be done with almost a blank slate by mostly new hires.

Buying companies is hard. I'm pretty sure this was a big net negative for the buyer.

I accept that it isn't easy and the requirements were lessened, weeks after they tried to enforce them. One of my dev. systems now dual boots into windows, it will probably be stuck in update hell if I ever need it.