In article ,
says...

Provided some catastrophe does not occur. Listening to Mr Hadfield on TV
here in the UK last night he said that in the quieter parts of the statiion
you could hear things impacting the outside quite a lit and of course as
they were pretty small it did not cause any problems, but sooner or later
one supposed something a little bigger might come along despite all the
tracking.

It's a possibility, to be sure, but so far it's not been an issue for
ISS or any prior LEO space station.

Jeff
--
"the perennial claim that hypersonic airbreathing propulsion would
magically make space launch cheaper is nonsense -- LOX is much cheaper
than advanced airbreathing engines, and so are the tanks to put it in
and the extra thrust to carry it." - Henry Spencer