My Sundance also doesn't care about getting wet.  (He even comes running
when he hears me running water in the sink!)  I've had success using a can
of compressed air.  I don't hit him with the stream of air, it's just the
sound that stops him (at least most of the time!).

Sandy

I had a cat like that, once!  Sorry, I never DID find a
solution.

sorry, no useful advice. Just reminds of how different cats can be.
The squirt bottle worked great deterring LB and Sammy from getting
into trouble. Never had to hit them with water, just had to squirt
near them and they would usually stop whatever they were doing. Rocky
(RB) on the other hand, couldn't care less about being hit with a
blast from the bottle. After all, he sit in the middle of the lawn
while it was raining, only moving to shelter if it was really coming
down hard.

Short side note: The exception is when Sammy is in the OUT and decides
to explore forbidden territory. She only goes out when supervised, and
knows how far she's supposed to go, but that doesn't stop her from
trying to extend her expeditions.

A typical relaxing trip to the OUT with Sammy starts with me sitting
in the lawn chair watching as she and LB sniffs all the familiar
areas.

After a few minutes LB will find a nice patch of grass to nap on, or
maybe come jump up on my lap to thank me for taking them out.
Meanwhile, Sammy is exploring further and further, so I call to her
that she's gone far enough.

She gives me the ear and keeps going. I call that I'm getting the
bottle. She ignores me. I get up and pick up the bottle and squeeze
the trigger a couple times to prime the pump. She stops and looks at
me, then lays down as if to say all she wants is to nap on this prime
patch of grass, which is much better than anything closer to the
patio. I put the bottle down and sit down. She gets up and announces
that while this is certainly prime grass, it looks even better just
over there. I yell, she gives me the ear and ignores me. I get back up
and start towards her, squirting water in her general direction. She
runs back to the patio, cursing under her breath about how
unreasonable hoomins are. Five minutes are so go by, and the whole
sequence repeats. After the third or fourth repetition, I decide
enough is enough, and it's time to go inside.
<snip>