Not in my English lessons! We're talking about a possible event in the future, the subtext in the use of assume removes the hypothetical, in my eyes anyway - your behaviour is permanently altered in anticipation of risk.
Shaved from t'net.
May and Might – "May" should only be used where the event in question is still possible, not for something that was possible in the past. "Might" is properly the past tense form of "may". (In similar fashion, "could", "should", and "would" are all past tense forms for "can", "shall", and "will", respectively.)
LOL - we're waaaaay into the realms of off topic now!!
Oh, and 312s on that car say scene-mobile. Pub bragging power with no concept of a true fast car.