Daphne is on the phone with a US Government agency, attempting to renew her British passport. Instead, she should be contacting the British Consulate.
Niles's spilled coffee is supposedly responsible for ruining Frasier's shoes, but nothing comes out of the cup when Niles drops it.
In the beginning at cafè Nervosa, when Martin is first through the entrance door, he has a quirky blue hat on his head but then the scene cuts to him walking in the cafè the hat disappears.