Originally Posted by BlueScholar

When you're on probation they certainly can fire you for not being a good fit, and not reliably making it to work meets that definition, even if you are abiding by the 2 flight rule. I do not plan on using the "2 flight rule" at all while I'm on probation, and I recommend all new hires do the same. Now if you're off probation and a full member of the union? Completely different.

edit: I'll add in that in my CPO welcome, they talked about 3 strikes for probation members before you're in serious danger of being fired. Dropping dead due to medical/passport/CBT's expiring and not being in position for a trip were the 2 most common strikes, and I didn't ask about how the commuting policy factored in there. But I take that as a warning to not need the commuter policy more than 2-3 times if you want to stay off the radar.