Littered throughout Mark Tufo's Tufo-verse (Zombie Fallout, Lycan Fallout, Indian Hill, etc.) there are references to Michael Talbot pissing off a demi-god as his source of misfortune.
From Lycan Fallout 4:
"Again I said nothing. What could I say? She was right. From the moment I'd told that demi-god to basically kiss my ass, there hadn't been much in my life that wasn't dictated by the strangest of events and the most savage of twists. Hell one time I'd gone straight from cleaning my garage to confronting a yeti..."
The name "Poena" was mentioned in (I believe) Mark's Merry Mayhem.
Wikipedia say this regarding the Roman goddess Poena:
In Roman mythology, Poena (also Poine) is the spirit of punishment and the attendant of punishment to Nemesis, the goddess of divine retribution. The Latin word poena, "pain, punishment, penalty", gave rise to English words such as subpoena and pain. The original word is the Ancient Greek poinḗ (ποινή), also meaning “penalty.”
What are the specific details of the events surrounding when Mike angered a demi-god(dess) and where can they be found?