Night Swimming?

So, after reading through some threads in which it seemed like people suggested they trained in open water after dark, my question is: Do You? Typically, a few times a year (usually when the moon is bright) I will go out at night and do a normal long swim, but I don't make a habit of it. Last October, before the water here in CT got too cold, I went for several night swims (using tinted goggles, which was a bit of a mistake) but now I am thinking of making this a more regular thing in order to train more when the tide isn't conducive to training during the day (i.e. when I'm at work). Is this just stupid? It doesn't seem any more dangerous to swim at night than during the day (particularly with appropriate goggles:)) since I am always swimming by myself anyway. Any thoughts on this?