I loved this little exchange from the Commentary, so yesterday I giff'd & spammed it on tumblr. ^_^
John's Sex-Appeal Makes Sherlock Stumble
From the ASIB Commentary:
Benedict: I do love the moment, the only moment he verbally stumbles (and I sort of did it deliberately, was) was because I sensed a bit of competition, in- in Watson starting to turn on the charm.
Lara: With him sitting next to me?
Benedict: And in trying to desperately get in there to impress you I went “thblmlblargh?!”
Benedict: It’s very funny.
Something about the idea of Sherlock perceiving John as a sexual threat - and being thrown off by the thought - just made me go all wobbly in the downstairs >_< (because apparently John can hit on a woman simply by sitting very quietly in the vicinity o_O').