Tomorrow is Rosh Chodesh & Chanukah, together. Two Sifrei Torah are taken out.
The rule of תדיר specifies that we read from Rosh Chodesh first, since Rosh Chodesh occurs more frequently than Chanukah.
Let's say, they accidentally placed the Chanukah Torah down on the table, first. We cannot just place this Torah back and switch it with the other one without reading for it as doing this would be considered an embarrassment to the Torah. Yet, if we roll this Torah as well as the other one (which is now on Rosh Chodesh, and would have to be rolled to the Chanukah section), this is טרחה ציבור - (burdening the congregation.)
May one reverse the reading in this situation to avoid טרחה ציבור? Would he be allowed to do this if let's say there were exactly 10 people in shul, and one person said that he must leave to go to work by a certain time, and rolling the Torah would cause him to miss his train. If he leaves, you will have no Minyan for Musaph.