i know i shouldnt be tugging on them to get it off but when i do they love to pop right out.
Yep, all my Thai chillies do that too. Thin skinned, lots of seed, dry out quickly. Need to harvest with scissors^ That. Tabascos have thin skin with a high moisture content between the skin and the rest of the flesh.
The green cap/shroud on the end of the stem. That stays on the plant and the bare pod falls/pulls off too easily
I should really just google "calyx" to figure out what this topic is about, but I'm not sure I'm ready to do that just yet.