Yeah Bitcoin had an infamous one early on. Monero has never had one discovered.

It's not the same thing; Monero may suffer from invisible inflation.

You're right, it's not the same thing. One (BTC) happened in reality, thankfully very early on so the chain was rolled back (such decentralized, very censorship resistant!) and things moved on. The other (XMR) lives rent-free in your head to you can justify your pig-headed stubborness to yourself.