Knowing: It's me.

longRun

昨天看dvd “Knowing”, 主角教书途中发呆, 被其中一个女学生唤醒：Well, what do you believe? 主角答道：I think shits just happen. But that's me.

想问最后的一句是什么意思？句中的that指的是什么？

有几个可能：
1. that 指前一句的I, 强调這只是他个人的想法。
2. that指shits just happen这个现象，意谓坏事发生在自己身上。

还是其他意思？请指教。

cillalaw

"but that's me' means "that's just my opinion or in my opinion"
but carries a bit more of a sarcastic tone or a bit casualness?

longRun

Thank you. 你的解析很合理。

日常多不多这样用？