In the everyday life, there are situations where it's easier to do something than to undo it (it's harder to tie a knot than to untie it), and other situations where it's harder to do something than to undo it (it's "easier" to dirty the floor than to clean it).
What action could be as difficult as its opposite?
Great topic. I guess there are many possibilities; -- Tie a Gordian knot comes to mind.
it is hard to respawn from the dead cause to get crynogenically frozen you need a lotta money
Generally it is *easier to tie a knot than to solve although this is not true for me personally
Auto-decapitation seems to be the first thing to come to mind right off the top of my head (not to put to fine a point on anything)
Acting
Telling ur mom u got 100/100 when you got 23.5/100