My Gallant Spouse and I say "Stone and Sea forfend!" about anything and everything we don't want to see happen.
In response to anything that must be accepted but isn't pleasant (missed buses, early morning scheduled activities, etc.) I tend to say TFH (acronym for
Tan-*bleep*ing-
Haruchail). The original version is reserved for serious and/or sacred use. We sometimes speak of a character in another mythos or a person in real life having a very difficult
Tan-Haruchail in front of them, e.g. when Dr. Franklin on Babylon 5 had to admit he had a stimulant addiction.
Caution, religious content:
I also say Tan-Haruchail in church in response to "The Body (Blood) of Christ keep you in everlasting life", though I try to cover it with "Amen" in a more public voice.