Katrina Kaif has seen to it that success and achievements do not intoxicate her firmly grounded thinking and behaviour.

"Katrina has not got carried away by her success. She continues to be herself", said a source close to the actress. The source said that people were surprised to see Katrina carry her own luggage at the airport even though her chaperones were with her.

The source added, "Sandhya, Katrina's secretary, was with her and though she insisted that she'd carry her luggage Katrina just did not allow her to do so! Katrina said, 'It is my luggage and I will carry it myself'. Katrina usually prefers to do her tasks on her own. Success Sas not spoilt her at all."

Katrina's humble behaviour reflects her upbringing. "Katrina has learnt that success and failure are transitory and that one should not get carried away by them. She firmly believes in keeping her head placed on her shoulders. She has enjoyed seven back to back hits, the latest being Singh is Kinng but Kat's humble as ever."

Guess success hasn't gone over Kat's head.