When you are learning a new language you reach a point where you think you know enough to get by. This is the moment on which you approach the world with a new found confidence that bears no relation to the actual level of fluency that you have achieved. Here are just a couple of my recent mistakes...
1 - Waiter, could you please bring me a car door? (instead of knife - sportello v coltello)
2 - Can you please advise advise me where to buy a riding hat? I find it difficult to find one that fits because I have very big tits. (instead of head - tette v testa)
3 - Last but not least as this one is not mine but it still makes me laugh... At a family dinner, the speaker announces " I do like Italian cooking, as it is so natural and fresh, not full of condoms like English cooking". (In Italian preservativi is not used for preservatives)