I had a purple “flashy” pump for years and LOVED it! Now I have a green one. If pink had been an option, I totally would have gone with pink!! I think this is 100% a personal preference. I don’t hide that I wear a pump at all. Sometimes I hide the pump for fashion’s sake, but never because I don’t want people to know I’m diabetic, or that I wear a pump.
Regarding being cautious with the pump. It certainly wore off for me. I just make sure my tubing is tucked in really well, and I keep the pump clipped INSIDE my jeans (or skirt or pants or whatever) pocket. If there’s no pocket in my pants, then I keep it tucked inside the back of my waist band. The reason I keep it inside is that I feel I’m less likely to run into something, or for it to fall out. I wouldn’t say I’m an “extreme” anything, but I have ridden lots of horses (not well trained to well trained), done cheerleading and gymnastics, etc with the pump, and I don’t have any horror stories to tell. The one time my site has ever been ripped out was because it was in my hip and I walked too close to the latch on a door jamb and that pulled it out. I’ve been wearing a pump for 5 or 6 years now, so once in that time ain’t bad.
When sleeping, I either do as you said, and keep it clipped inside my waist band (like, with the pump screen facing my skin) at the small of my back, or I just let it hang out next to me. As another poster said, the few times it has fallen off, the adhesive was plenty strong enough to hold it…no problems whatsoever. The biggest problem I’ve had with sleeping this way is when the tubing wraps itself around my waist because I toss and turn.