Keys - what are they good for anyway?

I lost my keys at Planete Charmille a few days ago. Losing your keys is undoubtedly one of the most annoying things that can happen to you. Especially if you don't have any spare one on you, which people usually don't, but which I remarkably had this particular day. I had met up with the girl who looked after our birds over christmas just the day before, and since I'm lazy I still hadn't taken them out of my bag. So, for once, laziness actually paid off! I also hadn't moved the mail box key back to my own keys, which was yet another thing to be thankful about. So, in other words: I lost the apartment keys, but could still get into the apartment. Apartment keys are also easy to copy, so no real harm done there.
BUT I also had my bike key in that key ring. The only copy. I had locked my bike to a sign post, with my super safe, unbreakable metal lock, while I just ran inside the shopping centre Planete Charmille to buy a loaf of bread. During those maybe five minutes that it took me to buy that (not very nice) loaf of bread, my keys magically managed to escape my coat pocket.

I still haven't gotten my keys back, and it has now been four days. Tomorrow I will go to the lost and found office to check if they have turned up yet. Somehow, I don't count on it. Not that I understand why someone would want to hold on to someone else's keys, especially if they don't know where the person in question lives. And if I don't get them back, I will in other words have to somehow try to break into my unbreakable lock to free my bike from the sign post. I mentioned my problem to one of my students today, and it turns out that his brother is a metal worker. So if I don't get my keys back, he will bring me a metal saw for our next lesson. Very convenient!

I miss my bike.