This might be interesting to some people for testing purposes. You all heard stories how certain input caused certain systems to crash. Here is someone who collected lots of these strings.
Big List of Naughty Strings
Luckily, Pharo can at least read them all in, without problems, as far as I can see.
‘https://raw.githubusercontent.com/minimaxir/big-list-of-naughty-strings/master/blns.txt‘ asUrl retrieveContents lines.
PS: You won’t see all the weird/exotic Unicode characters (choosing a different font like Arial Unicode MS shows a lot more).