If you have any used Rucks R350's or R550's then we would like to buy them from you. All we ask is that there are no major marks or scuffs on the unit and it has it's mounting bracket. Contact me at adam@grabzoom.co.uk

I received a call from a client who had just purchased five brand-new laptops. They said that the Wi-Fi was bad in their office. Of course, it was the company's CEO who had the problem. I tested the Wi-Fi first - all good. I asked if anyone else in the office had poor Wi-Fi performance, and they all said no. I said to the CEO, it must be your laptop, let me take a look at it. Ah! said the CEO, all these laptops are identical, all bought at the same time, same make and model, so it can't be my...

Back in the day, when I was working in the defence industry, I was given a tour of a rather large and impressive comms room. Being in the defence industry back then, they would put loads of aviation test gear in there along with the usual servers. As you walked in, there was a half-height wall with a half-coconut shell on top of it. I casually asked why it was there - some internal joke thing? I was told to pick up the coconut shell (half expecting a prank bang), but underneath the shell was...