We get attacked by X monster (doesn't matter), he acts the high and mighty, flings a spell or two (usually an enchantment) taking out the odd monster, while the rest of us do our thing (Cleric buffs up and smashes stuff, druid wild shapes and mauls something and the rogue goes for the SA)
As soon as he takes the slightest hit, he scurries to the cleric for healing, even in the middle of a fight he winges and pouts like a stubborn kid if the cleric doesn't drop everything MID COMBAT and poke him with a heal...
Nothing really out of the ordinary there, a squishy mage doesn't want to die, but 2 HP damage, at level 10 has him scurrying.
Social situation goes wrong (usually due to him sticking his foot in it with his own ego) and he runs away, fleeces a body or something and finds somewhere to hide.
I know CHA characters are supposed to come to the fore everytime something needs negotiating, but the way he does it makes us feel like smashing our head agains the board.
Away from the board his usual tack is to constantly big up his character, which is great, nothing beats enthusiastic characters (We all love to big ourselves up) but the way he does it for exclusion to everyone, of course the cleric never hit the Ogre with that debuff spell which let him narrowly cast charm monster, and the fighter never dropped that minotaur which saved his life, or anything like that...