Just to note, "Tá brón orm" can be a little strong if you just bump into somebody, or spill a drink, e.t.c. "Mo bhrón" would be better if you are apologising for something and "Gabh mo leithscéal" if you bump into somebody.
https://forum.duolingo.com/comment/4286677/Tá-brón-orm
Sometimes I am searching, duck duck going or googling and I find random duolingo pages filled with such intriguing knowledge!
Does that happen to you?
It's such a shame that Duolingo shut down these forums there seems to be such detailed and nuanced information in them!