How do you set an "If" option on an entry that includes "contains"
OKay so the solution I found is this. It was much more complicated than I wanted it to be but it works.

{% set VARIABLE = 0 %}
{% for entry in craft.entries.section('ENTRY') %}
    {% if entry.FIELDNAME.contains('CHECKBOX OPTION') %}
        {% set VARIABLE = VARIABLE + 1 %}
        &lt;li&gt;CONTENT&lt;/li&gt;
    {% endif %}
{% endfor %}
{% if VARIABLE &lt;= 1 %}
    &lt;li&gt;CONTENT&lt;/li&gt;
{% endif %}