Martin:
Wow... that's... really depressing.
About the frog dying, however, he wasn't just sick. I had taken him to a vet, soaked him in an antibiotic as was prescribed, and he was literally in the throes of death when i decided to hold him. He was nearly already gone - it took only about fifteen minutes from the time he began to die (the spasms and such, I had to fish him out of his water as he had flipped over and risked drowning, at which point I left him in his tank for a few minutes before assuming the end). I really tried everything I could possibly try for him, but to no avail ... I only took him out during that time in his last moments and to go to the vet.

I also personally feel that I'm not harming him as much as he could really harm himself - I've never noticed any signs of stress or sickness aside from when I first got him. I feel that I'm as careful as I can be; I love that frog more than I can possibly even explain, haha! He's never tried to escape my hands.
I appreciate your opinion, though!