English equivalents of Slovak saying [closed]

Solution 1:

No skin off my nose. -- Wiktionary

(idiomatic) No harm to one.
You can be as critical of them as you like. It's no skin off my nose.

Solution 2:

There's a fairly exact match...

It's easy to sleep on another man's wounds

Apparently this is an Hiberno-English proverb, although I've only heard it in other dialects.

There doesn't seem to be much info online about its origins, but someone did base a book title on it:

https://www.irishcentral.com/opinion/others/ernie-o-malley-remembering-the-renaissance-man-of-the-irish-revolution-on-his-120th-birthday