I can handle most of the annoyances and weird animations that occur now and then, but the route fail tantrum makes me sad. If the route fails, just fail! Don't be needy about it, my dear little sims!

In the screenshot: Placed a bunch of folding screens around the comptuer area and repeatedly aimed Arturas to go play chess.. tho the route fail bubble showed up, the tantrum did not.

Tested a bunch of different ways by directing 4 adults to all play with the same thing, squeeze through the same door, etc.. tho route fail still occurs, the tantrum animation will not be called.

6-14-2010 Yes, it's compatible!
Sims 3 + World Adventures + High End Loft Stuff + Ambitions + all patches as of 2010-06-14 are compatible with this mod.

Additional Credits:
EsmeraldaF for her "No more 'Handy sim' wrench-tossing animations" (http://www.modthesims.info/d/365920), which gave me the jazz direction to start looking for things to de-animate
And of course, TigerM for the "Smooth Jazz animation script editor" (http://www.modthesims.info/download.php?t=365465), which allowed for the quick and painless search/destroy of this animation.

Install this like any of your other config mods: drop in the "Electronic Arts\The Sims 3\Mods\Packages" folder.