Do you have to carve time out of your day to pump in a crowded room with no lock?

I'm currently a teacher with no sick days left so I can't just go pump and take a sick day. <br><br>Any suggestions. Or what did you do? I don't know if anyone had the same issue but it's getting harder carve out time to pump. <br><br>I have an office near the copy room and I kind of have to pump on the floor in the copy room.