The Linux and Solaris guys actually laughed at me
This happened about 15 years ago. I worked at an IT/Telecom company as a Windows systems administrator. However, much of the business' computing power was dedicated to Sun Solaris on Sun servers and Red Hat Linux on Dell servers. One morning I get into work and I hear one of Solaris admins (SA) and one of the Red Hat admins (RH) having an unnecessarily loud discussion about uptime. So I walk over and asked what was up. SA said that RH said Linux has better uptime that Solaris. RH says SA says Solaris is better. They argued a bit more. I said why dont you find the computers with the longest uptime and the one that has been up the longest wins lunch. They said that was a good idea. I asked if I could join in the bet. They both started laughing. Saying things like you have to reboot windows once a week. I said I dont mind. They said ok. So lunchtime came around and we met. RH found a server that was up for 3 years. The SA laughed and found a Sun Workstation in the data center that hasnt been logged into by anyone in 2 years, but has been online for over 5 years. RH says fine, SA wins. I said hold on. They both looked at me and actually laughed when one asked if I could beat either of them. I dragged them into my cubicle and showed them a machine I was remoted into. An old Windows NT 4 server that ran the hardware and software for the building's physical security and door access cards. It had been running for around 11 years without a reboot.
I had a really nice lunch that day.