Before my time, the company did some kind of retreat of 2 days, with sleeping in,for all 40 of the IT staff. The idea was to get them to know each other,as they where dispatched to 20+ divisions and only spoke by phone. There was no work to be done there, no cringy corporate stuff, just a mountain of food and drinks. It must have been expensive.

We're now 20 years later, and they're still referring to it. But when any noninvited ask anything, they all get very very very vague. Whatever happened on the retreat, stays on the retreat. Don't get me wrong, I don't think anything illegal or untoward happened.

It worked. They became a tight social network. Ask anyone anything, and the right person and info magically appears. Even 20 years later, in a very political corporation, the trust built that weekend still persists.