Public transport and Murphy's law

I think that Murphy's law of public transport says that as soon as you approach the station, you will notice there's a tram/bus/train there, which will leave immediately as you move closer, and then there'll be some sort of disruption and you'll be waiting for the next tram/bus/train, like, forever.

At least that's what happens every morning when I leave the house to go to work; I see there's a tram in the tram station right on the other side of the street, and never manage to catch it before it leaves. The alternative is seeing a tram that has departed something like 20 seconds ago further down the street. In any case, there's always some kind of disruption afterwards, so I have to wait at least 10-15 minutes for the next tram.

Interestingly though, this doesn't happen when I don't intend to go to work, but elsewhere. Anywhere else, for that matter.

Even more interestingly, when I go to my favourite Indian restaurant and leave there late in the evening, there's always a bus coming around the corner that will take me home. Like, it's always coming, even though it's late at night and there's officially a 15-minute interval at the time, and it's always coming in such a way that I only have to wait for half a minute or so, and I always manage to catch it.

If I were to believe in karma (which, incidentally, I am), I would draw my conclusions here.