More bugs in Infocom games

About the list: This list is meant to complement Graeme Cree's fabulous collection of Infocom bugs. Some or all of these bugs may thus disappear from this list, should they appear on a future version of Graeme's list. Note that I list bugs only for the parser games; I don't include Journey, but Graeme does.

Unless otherwise noted, I discovered these bugs. Contributions are welcome; I would really like to include your bugs!