It's true that smacktards running over your mines can get you kicked... it happened to all of us
Here is something that happened a few weeks ago on server 1:
Market Garden... n00b takes jeep on airstrip and drives straight to stone bridge. I don't remember the real name of the engineer. Let's say it's Wairudo. The chat screen looked like this:
Wairudo Enjin killed a team mate
Player is no more
Chacal (admin) [allied]: er... Player... the bridge is mined. They both are. Don't drive there.
Player [allied]: k
Wairudo Enjin killed a team mate
Player is no more
Chacal (admin) [allied]: er... Player... I said the bridges are mined. Don't drive there, you'll blow up.
Player [allied]: k
Wairudo Enjin killed a team mate
Player is no more
Chacal (admin) [allied]: Player... what part of THE BRIDGES ARE MINED don't you understand?
Player [allied]: sorry
Wairudo Enjin killed a team mate
Player is no more
Player Wairudo Enjin kicked for minus score
Player Player was kicked from the server.
I swear this is true.
Also, Camel Toe Joe had a similar problem once on Husky. Everybody and his mother was driving over his mines. That won him a mention on our Disney picture contest: