import time
from random import random, randint

def sleep(seconds):
    jitter = seconds * 1000 / 10
    sleep_time = randint( seconds-jitter ,seconds+jitter)
    time.sleep(sleep_time)

def random_lat_long_delta():
    # Return random value from [-.000025, .000025]. Since 364,000 feet is equivalent to one degree of latitude, this
    # should be 364,000 * .000025 = 9.1. So it returns between [-9.1, 9.1]
    return ((random() * 0.00001) - 0.000005) * 5

import time
from random import random, randint

def sleep(seconds):
    jitter = 0.1 * seconds
    sleep_time = randint( seconds-jitter ,seconds+jitter)
    time.sleep(sleep_time)

def random_lat_long_delta():
    # Return random value from [-.000025, .000025]. Since 364,000 feet is equivalent to one degree of latitude, this
    # should be 364,000 * .000025 = 9.1. So it returns between [-9.1, 9.1]
    return ((random() * 0.00001) - 0.000005) * 5

fix to jitter in human_behaviour.sleep (thanks to @tstumm)