I Have to Wash My Hair/Playing With

Basic Trope: A lame excuse to get out of a date.
 * Played Straight: Alice is asked out by Bob, but she doesn't want to hurt his feelings. So she claims she has to wash her hair.
 * Exaggerated: Alice claims she's doing an entire makeover that evening.
 * Inverted: Alice tells Bob she's not interested in him (depending on her character and/or her mood, she may do this gently or harshly.)
 * Alternatively, Alice comes up with an excuse, but it's a legitimate excuse.
 * Bob's the one making excuses.
 * Subverted: Alice gives an excuse that's plausible, such as a family obligation.
 * Alternatively, Alice seems to be making an excuse at the time but it's later revealed that she really does have to wash her hair.
 * Double Subverted: But then is seen out and about later with her friends or with a guy she's actually interested in.
 * Deconstructed: Bob believes that is just a lie and forces her to give in...
 * Reconstructed: ...but Bob realizes she is not his type.
 * Parodied: Alice really does have to spend ridiculous amounts of time washing her Rapunzel Hair, and Bob thinks she's lying.
 * Lampshaded: "I'd love to, but I Have to Wash My Hair."
 * Averted: Alice doesn't make up excuses.
 * Alice isn't asked out by Bob.
 * Enforced: Part and parcel with a Love Triangle or Love Dodecahedron
 * Invoked: Alice is asked out by Bob, a notorious Abhorrent Admirer Casanova Wannabe.
 * Defied: See "Inverted" and "Subverted"
 * Alternatively, Bob calls her out for making silly excuses.
 * Discussed:
 * Conversed:
 * Played For Laughs: Almost always is.
 * Played For Drama: See "Enforced"