I did put pepper in some of them, but when I went out there they had already popped, not b/c of Shai. But let me tell you it wasn't fun blowing up those balloons with Cayenne Pepper in them.
She just puts outs her foot on the balloon and it POPS and she just stands there!!
I am really surprised it doesn't scare her as timid as she is any other time. The other day one popped that I had in the house and both the cat and the dog took off!
A couple weeks ago, something fell off the table when I was in the bathroom,, and the dog and cat both flew into the bedroom. It took about 5 min before they both slunk around the corner to see what it was.