save a bee with some sugar water
some of you may know this so this is for the unaware
if you find a bee that looks like it is dying or flailing on it's back or just looking like it's on it's last legs, you can revive it with a little water and sugar, if you soak part of a tissue in it and put it near the bee it will revive itself by drinking it, alternately as my son did as he was at work just put it on a teaspoon or just a puddle on the floor if you have nothing to hand.
sometimes they just get exhausted from all the pollen collecting and can easily die from exhaustion. we have done this half a dozen times already and after their drink are able to fly off