A level 7 is possible but it involves picking up a Chicken Phaal from the takeaway on the way home having previously seeded a level 6 to acquire the courage to eat the Phaal in the first place.
Signs of a level 7? Total paralysis of all locomotor functions and certain vital sphyncters. Spontaneous evacuations with no pre-emptive aura, and your a### is on fire for at least 48 hours.
If your partner is still with you after a level 7 then you know it's love!

Don't try this at home kids!