Love
Don't cross the line
While touching

Parents
Don't cross the line
While spending

Police
Don't cross the line
while signalling

Boss
Don't cross the line
while executing

Taxes
Don't cross the line
while earning

Diet
Don't cross the line
while eating

Arbitration
Don't cross the line
while negotiations

Neighbor
Don't cross the line
while compounding

Girlfriend
Do cross the line
while loving..