[tetris11]

    `+`(1,2)

is a valid R call for anyone wondering

[vharuck]

So is this:

    `(`(1)

Bonus points: Find a use for having the parenthesis be a function.

[mc_maurer]

Sneaking some very devious stuff into a friend's .Rprofile when they're not looking

[_yb2s]

That's pure evil