It took a LOT of convincing in the first place.

The sprinklers at the park are always on when we go. Annabelle shows interest in playing in them, but never really actually tries them out. So after several minutes of pressuring encouraging her, she finally ran up to one. As it clicked around she stood there staring at it, then it went right over her head as she screamed "WHAAAAAT!" (that's "wet" in Annabelle speak) She took off running but couldn't quite out run the sprinkler and got wet again. So, as if there was someone watching who would just turn it off she signed "done" but realized she still wasn't quite out of range so she ran again screaming "DOOOONE!" Then she walked over to me as if the whole thing hadn't even happened.

You'd never know we were on our way to go get really wet playing in the river. If you look closely, you can see the sprinkler that she's running from in the photo on the right...