Well, I was actually on the district line when it happened. At about 08:50 our train came to a sudden stop and the driver, a very nice Australian, told us we would be delayed because of a "power explosion" further ahead. We inched foward for about 15 mins before getting off at Embankment station. It was only later that I started to realise how lucky I was that I wasn't on my usual line, the Picadilly line.
Myself and a friend left work at 5pm to try to find a way to Wembley, where we both live. As the tube was down, we walked for 30 minutes to Euston station, which was a surreal experience. There were thousands walking to the station, and at every bus stop there were hundreds more waiting for buses that simply didnt arrive. Every two minute or so a convoy of police cars and vans would screeh by at full speed with all sirens going. The tension you felt when they went by was palpable, and people were worried they were going to stop and tell you to evacuate. When we got to Euston station, five fully loaded police vans suddenly rushed up to the station, and we thought, "thats it" they are going to bomb Euston.
It was a false alarm, and we managed to squeeze onto a mainline train service to Wembley. It was an amazing experience on that train. You had white, black, brown, English, Scottish, Indian, Russian, Pakistani, Polish, American, Nigerian, German all trying to get home. It really does show that an attack on London is an attack on the world.
And rather than stay in on Friday, I got up early and I went in to work. I was a little nervous taking the tube, but I'm not going to let those bastards make me cower in fear.