def convert_boolean(inpt):
    """Return boolean value from input boolean input

    >>> convert_boolean('1')
    True
    >>> convert_boolean('-1')
    True
    >>> convert_boolean('FaLsE')
    False
    >>> convert_boolean('FaLsEx')
    True
    >>> convert_boolean(0)
    False
    """
    val = False
    if str(inpt).lower() in ['false', 'f']:
        val = False
    else:
        try:
            val = int(inpt)
            if val == 0:
                val = False
            else:
                val = True
        except Exception:
            val = True
    return val
