As our clan members on the continent might say:
Isn't this a classic case of Schadenfreude?
As is enjoyment taken from the misfortune of someone else.
The word has been borrowed from German by the English language and is sometimes also used as a loanword by other languages.
German philosopher and sociologist Theodor Adorno defined it as
"the largely unanticipated delight in the suffering of another which is cognized as trivial and/or appropriate".
Lead
(PS the definition is from Wikipedia)