I'm sure we can fill up pafes & pages on this site of what were afraid of. When I was 5yrs. old I was bitten by a 'Dalmation' dog, had to have the shots in my stonach, funny thing i don't remember anything about it. I even had a 'Dalmation' & I have a 'Animal rescue' in my town, so i have rescued many Dalmations.
But Cacti I just love them, besides I live in an area that was once a river bottom, so the soil is TERRIBLE, or if you get the rock out, you have a nice hole, the rocks seem to 'breed' on my property. Well I have 5 Dessert Tortoises, so a friend gave me some cati called, 'Prickley pear' which my tortises loved, it was getting big & I was told that many Tortises have had their eyes pooked out by that plant. What fun it was to tear it out...stickers...stickers every where, of course I didn't get it all, so I'm still 'pulling' out shotts & 'stickers' from my arms, legs every where.
I have heard of a 'spinless one' it must be new, still I'll check it out. See we all have our 'Fears' something we have to live with. Hugs, Pegi