First, you have to have avoided any carefully approach that corner (past Calixto's shop), right before the giant gate opens to the Argonian section of the docks where she sells flowers.

Even here (especially if you're sneaky/sneaking...), this can be pretty fun. Just inch forward every few seconds until she notices you, which will then make her start to walk kinda slow, then kinda speed up, then charge at you like a freaking rhinoceros. The trick is to see how close you can let her get without actually having to talk to her or put up with her trying to sell you flowers. (nice, huh?)

There are two other ways to "play" with her, and one is to get into that same spot, but standing, and play a little game of chicken with her until she comes after you all crazy, at which point you sprint toward Sadri's like your life depends on it. This is also pretty fun...and wrong.

Lastly, when you're on the stairs in front of Sadri's, you can incrementally go up them towards her spot, wait for her to approach and charge (you really don't appreciate how pushy this girl is until you see her charge at you from this angle!), then back up as needed. Once this magical distance is made between you two, she turns around...though she'll totally fake you out if you're not careful.

so I'm going to Hell, obviously, but try those little "mini-games" next time you're bored : )