Draw your own collisions

Last weekend. (in euroland so wrong side of the road)

Approaching round-a-bout, and closing on a SUV going the same way.
Both of us turning left.
Bus approaches the next entrance, sees SUV and slows.
I make eye contact with driver, am on the left hand side, and give a big signal.
I assume bus driving seeing me means its OK to keep going fast, as I have the right of way.
Bus driver assumes me seeing him, means I'm going to stop (in the middle of a round-a-bout? WTF?), and speeds up.
I make a snap decision to accelerate, as its far too late to brake, and clear the corner of the bus by mm's.

Not a collision but the closest I've been to being squished for many a year.

Was this in France? I had bad experiences there last summer, due to my ignorance of the 'priorite a droite' rule. On one occasion I was bombing down a hill when a car pulled up to the entrance of a small road to my left, saw me, and proceeded to pull straight into my path. Much fishtailing and swearing ensued, though luckily I managed to go around him without clipping his bumper. Another time on a roundabout I had a similar encounter to yours, with a 18 wheel HGV... I still can't understand why it's like that, it seems to negate the point of roundabouts entirely.