technical support

When I first started my Ph.D. I was working with a then new operating system along with another student and we were having some problems. One evening I stayed in the office to work on a problem after my colleague had gone home. After a few hours I wanted to ask my colleague a question so called his flat. Oddly, the phone didn't even ring before my colleague picked up. We started talking over the problem before it because clear that we were talking at very slightly crossed purposes. It transpired that he'd had a flash of inspiration whilst at home and had called me to tell me his thoughts... at exactly the same moment as I'd called him to discuss the same subject. We both dialed the other number, were connected and assumed we'd placed the call.