Personally Id like them to show a little more sportsmanship. Once someone is out there is no reason to be a tool to that person any more.
But that's my opinion and I know not everyone shares it.
What I think they should do is look at that wicket. A test wicket shouldn't be designed so that batsmen can bat out the 5 days easily (comparatively, not saying the task is easy in general). The game should be decided in up to 5 days with the occasional draw.