(For my friend, who prompted: Ace and River Song, At a shootout between the two, Explosions! This is my response. *bows*)
"Give up, Professor Song," Ace called, darting to the side as her hand fell on the small silver can sitting incongruously in her rucksack and played with the timer.
As the smoke cleared, a figure wearing practical (yet stylish) combat gear stepped forwards, swinging a gun daintily by one finger. "Oh, sweetie, if you really think I give up that easily, then you obviously haven't read my files." She swung her gun upwards, tilting her sunglasses back, and smirked, adding, "Unfortunately, I've read yours."
Ace snapped the lid of a can of what could almost pass as deodorant. "Only a moron brings a gun to a fight that involves an explosives expert, Professor Song."
The woman's mouth formed a perfect 'O' as the can of Nitro-Nine sailed through the air, and landed at her feet. It was ticking.
"And for the record," Ace called in the final seconds before the miniature can of death went off. "Benny was a much better archaeologist than you."
The timer hit ground zero, and there was a massive boom.