I assign whoever has been nicking my post! I've not received a lot of important mail the past few weeks, including hospital appointment letters, council tax letters, student loan stuff and worst of all, my parents' Easter card! I know it's been put through the wrong letter box as we get next door's post - so I suspect the weirdo next door has been keeping it!
And I also assign "him next door" as he had a go at davem the other night for walking across the dining room 'too loudly' and then threatened him. He daren't say anything to me because I know too many dodgy things about him and will get him into trouble.