I’ve had two in the past, had my third just three days ago, my gums are still a little raw. My most recent root canal was on a hyper-sensitive tooth, so there was initially some pain, but once the dentist applied another couple of doses of anesthetic, it was painless, basically a more prolonged filling. The only thing I’d add is that my dentist recommended ibuprofen for after the anesthetic wears off, since there may be some pain, I’d second that recommendation since your gums will be sore for a few days

Oh, I’ve several. Irish people love a good curse.

Go mbrise an diabhal do dhá chois May the devil break your legs

Go ndéana an diabhal dréimire do chnámh do dhroma May the devil make a ladder out of your spine

Go n-imí an droch aimsir leat That the bad weather leaves with you

Go n-ithe an cat thú is go n-ithe an diabhal an cat May the cat eat you and may the devil eat the cat

And my personal favourite: Lá breá ag do chairde, dod adhlacadh May your friends have a fine day, burying you