PRE tags don't block expansion of single quotes:

<c>
perl -we 'say'
</c>

<pre>
perl -we 'say'
</pre>
[download]

Update: rendered as

perl -we 'say'
[download]

perl -we say

See? No single quotes in the last line!

($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,
[download]