I've had deer ticks bite me Al, probably from walking through long grass where the deer pass. They make a strange 'bullseye' red mark. Luckily I was given antibiotics immediately to prevent Lyme disease (prevalent here in Norfolk) which dealt with it.

The only venison I've cooked was in Scotland. (from a butcher)
I wouldn't touch 'roadkill'. But my husband sees it as a terrible waste of good protein.

We really will have to start culling deer, as they're becoming a huge problem.