Simply scrawl the following in a bathroom stall, write it in wet cement, tattoo it on someone's forehead while they're sleeping:

u=2∫as ds|u(0)=0

Hopefully, they will go ahead and

figure out what you're saying:

u=2∫as ds|u(0)=0
=2(1/2 as^{2}+c)|u(0)=0
=as^{2}+c|u(0)=0
u(0)=0=a (0)^{2}+c
0=0+c
∴c=0
∴u=as^{2}+0
=as^{2}

Your victim's

self-esteem plummets as

your message becomes clear:

**u=ass
**

QED.