2. The microfilm that you have diligently searched page-by-page will have an index at the end.
3. All of your spouse's ancestors will be mentioned in county histories. None of yours will be.
4. If you need just one record, the microfilm will have page umbers. If you need 3 or more records, there won't be any page numbers and the records will not be in proper order.
5. The book you need most will be out being rebound.
6. You will need item 23 on a microfilm roll that has 22 items. The rest of the film is continued on another roll that will not be in the drawer, and the librarian will tell you that it is "missing, and presumed lost."
7. Just before the entry you need, the records will end. They will begin again two years after the date you need.
8. If one brother is left out of the genealogy of a family, guess whose ancestor he will be?
9. If there is a family history on one branch of the family -- it won't be yours.
10. When you finally find the microfilmed probate records of your missing link to a rich and/or famous line, the book will be so tightly bound that you can only make out the first two letters of the name of the one who MAY be your ancestor.
11. The researcher you hire to read the original records at the courthouse will inform you that only the particular probate packet you need is missing.
12. During the last hour of your trip to the Family History Library in Salt Lake City you will find everything you've hunted all week for, but you won't have time to copy it.