To make it "Ruder" you could:
A) serve it a bit insulting, like intentionally spill some on your customer, or spit in it before serving it, or just don't serve it at all.
Or you can B) add something not normally featured in the Bloody Mary-recipe, like absinthe or tequila.
you can also C) if you feel like combining A and B you can add some high quality crack, since this can be considered quite rude, especially if your unfortunate customer overdoses and dies.
-A Sodding Mary. it's like a Bloody Mary but a bit ruder.
-here you go.
*Punch in face*