This is probably in bad taste.

Even though I am about to hold a bachelor's degree in psychology from NYU, this is all I'm qualified to do.  Let's see what's ailing these little fluffy rabbits who just don't want to live anymore.

Oh dear.  It seems this little bunny was suffering from some form of eating disorder, perhaps anorexia.  Unable to cope with her distorted body image, this bunny ended her life and was literally crushed by the weight of her disease.

Ah, it is possible that this little rabbit suffered from histrionic personality disorder.  His crippling need for attention and obsession over appearances eventually spelled his doom.  Blinded by jealousy of his fellow body builder, he failed to see how this sabotage would lead to his demise.

Caught between two opposing forces, it appears that this bunny suffered from rapid cycling bipolar disorder.  The poor thing couldn't handle the crazy highs and devastating lows.  Mood swings literally tore her in two.

I'm really sorry.  I'm feeling kind of dark today.