Another picture from my original (incomplete) costume for RED Spy/BLU Engineer.
"I'm an engineer, which means I solve problems. Not problems like, 'What is beauty?', because that would fall within the purview of your conundrums of philosophy.
"I solve practical problems, like 'How am I gonna' stop some big, mean mother-hubbard from tearin' me a structurally superfluous new behind?'.
"The answer? Use a gun. And if that don't work...
rockets launch from Sentry
"Use more gun."