He said he tells trainees turning off the phones can help save their own sanity, but says some agencies could view the act as tampering with evidence.

CNN: STORY HIGHLIGHTS

In their view, people think of a large lump-sum tax cut as new wealth and thus save it, while they think of the extra money that shows up in their weekly paycheck as additional income and spend it.

FORBES: Study Finds Payroll Tax Cuts May Boost the Economy More Than You Think